19987121952

素因数分解:

$2^5\times 3^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{9257}}^1$

素因数の和:9310

約数の個数: 360

約数和(自身を含む): 72408651084

約数和(自身を除く): 52421529132

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 32, 34, 36, 42, 48, 49, 51, 54, 56, 63, 68, 72, 81, 84, 96, 98, 102, 108, 112, 119, 126, 136, 144, 147, 153, 162, 168, 189, 196, 204, 216, 224, 238, 252, 272, 288, 294, 306, 324, 336, 357, 378, 392, 408, 432, 441, 459, 476, 504, 544, 567, 588, 612, 648, 672, 714, 756, 784, 816, 833, 864, 882, 918, 952, 1008, 1071, 1134, 1176, 1224, 1296, 1323, 1377, 1428, 1512, 1568, 1632, 1666, 1764, 1836, 1904, 2016, 2142, 2268, 2352, 2448, 2499, 2592, 2646, 2754, 2856, 3024, 3213, 3332, 3528, 3672, 3808, 3969, 4284, 4536, 4704, 4896, 4998, 5292, 5508, 5712, 6048, 6426, 6664, 7056, 7344, 7497, 7938, 8568, 9072, 9257, 9639, 9996, 10584, 11016, 11424, 12852, 13328, 14112, 14688, 14994, 15876, 17136, 18144, 18514, 19278, 19992, 21168, 22032, 22491, 25704, 26656, 27771, 29988, 31752, 34272, 37028, 38556, 39984, 42336, 44064, 44982, 51408, 55542, 59976, 63504, 64799, 67473, 74056, 77112, 79968, 83313, 89964, 102816, 111084, 119952, 127008, 129598, 134946, 148112, 154224, 157369, 166626, 179928, 194397, 222168, 239904, 249939, 259196, 269892, 296224, 308448, 314738, 333252, 359856, 388794, 444336, 453593, 472107, 499878, 518392, 539784, 583191, 629476, 666504, 719712, 749817, 777588, 888672, 907186, 944214, 999756, 1036784, 1079568, 1101583, 1166382, 1258952, 1333008, 1360779, 1416321, 1499634, 1555176, 1749573, 1814372, 1888428, 1999512, 2073568, 2159136, 2203166, 2332764, 2517904, 2666016, 2721558, 2832642, 2999268, 3110352, 3304749, 3499146, 3628744, 3776856, 3999024, 4082337, 4248963, 4406332, 4665528, 5035808, 5248719, 5443116, 5665284, 5998536, 6220704, 6609498, 6998292, 7257488, 7553712, 7711081, 7998048, 8164674, 8497926, 8812664, 9331056, 9914247, 10497438, 10886232, 11330568, 11997072, 12247011, 12746889, 13218996, 13996584, 14514976, 15107424, 15422162, 16329348, 16995852, 17625328, 18662112, 19828494, 20994876, 21772464, 22661136, 23133243, 23994144, 24494022, 25493778, 26437992, 27993168, 29742741, 30844324, 32658696, 33991704, 35250656, 36741033, 39656988, 41989752, 43544928, 45322272, 46266486, 48988044, 50987556, 52875984, 55986336, 59485482, 61688648, 65317392, 67983408, 69399729, 73482066, 79313976, 83979504, 89228223, 92532972, 97976088, 101975112, 105751968, 118970964, 123377296, 130634784, 135966816, 138799458, 146964132, 158627952, 167959008, 178456446, 185065944, 195952176, 203950224, 208199187, 237941928, 246754592, 277598916, 293928264, 317255904, 356912892, 370131888, 391904352, 407900448, 416398374, 475883856, 555197832, 587856528, 624597561, 713825784, 740263776, 832796748, 951767712, 1110395664, 1175713056, 1249195122, 1427651568, 1665593496, 2220791328, 2498390244, 2855303136, 3331186992, 4996780488, 6662373984, 9993560976, 19987121952]

約数ペア:

[(1, 19987121952), (2, 9993560976), (3, 6662373984), (4, 4996780488), (6, 3331186992), (7, 2855303136), (8, 2498390244), (9, 2220791328), (12, 1665593496), (14, 1427651568), (16, 1249195122), (17, 1175713056), (18, 1110395664), (21, 951767712), (24, 832796748), (27, 740263776), (28, 713825784), (32, 624597561), (34, 587856528), (36, 555197832), (42, 475883856), (48, 416398374), (49, 407900448), (51, 391904352), (54, 370131888), (56, 356912892), (63, 317255904), (68, 293928264), (72, 277598916), (81, 246754592), (84, 237941928), (96, 208199187), (98, 203950224), (102, 195952176), (108, 185065944), (112, 178456446), (119, 167959008), (126, 158627952), (136, 146964132), (144, 138799458), (147, 135966816), (153, 130634784), (162, 123377296), (168, 118970964), (189, 105751968), (196, 101975112), (204, 97976088), (216, 92532972), (224, 89228223), (238, 83979504), (252, 79313976), (272, 73482066), (288, 69399729), (294, 67983408), (306, 65317392), (324, 61688648), (336, 59485482), (357, 55986336), (378, 52875984), (392, 50987556), (408, 48988044), (432, 46266486), (441, 45322272), (459, 43544928), (476, 41989752), (504, 39656988), (544, 36741033), (567, 35250656), (588, 33991704), (612, 32658696), (648, 30844324), (672, 29742741), (714, 27993168), (756, 26437992), (784, 25493778), (816, 24494022), (833, 23994144), (864, 23133243), (882, 22661136), (918, 21772464), (952, 20994876), (1008, 19828494), (1071, 18662112), (1134, 17625328), (1176, 16995852), (1224, 16329348), (1296, 15422162), (1323, 15107424), (1377, 14514976), (1428, 13996584), (1512, 13218996), (1568, 12746889), (1632, 12247011), (1666, 11997072), (1764, 11330568), (1836, 10886232), (1904, 10497438), (2016, 9914247), (2142, 9331056), (2268, 8812664), (2352, 8497926), (2448, 8164674), (2499, 7998048), (2592, 7711081), (2646, 7553712), (2754, 7257488), (2856, 6998292), (3024, 6609498), (3213, 6220704), (3332, 5998536), (3528, 5665284), (3672, 5443116), (3808, 5248719), (3969, 5035808), (4284, 4665528), (4536, 4406332), (4704, 4248963), (4896, 4082337), (4998, 3999024), (5292, 3776856), (5508, 3628744), (5712, 3499146), (6048, 3304749), (6426, 3110352), (6664, 2999268), (7056, 2832642), (7344, 2721558), (7497, 2666016), (7938, 2517904), (8568, 2332764), (9072, 2203166), (9257, 2159136), (9639, 2073568), (9996, 1999512), (10584, 1888428), (11016, 1814372), (11424, 1749573), (12852, 1555176), (13328, 1499634), (14112, 1416321), (14688, 1360779), (14994, 1333008), (15876, 1258952), (17136, 1166382), (18144, 1101583), (18514, 1079568), (19278, 1036784), (19992, 999756), (21168, 944214), (22032, 907186), (22491, 888672), (25704, 777588), (26656, 749817), (27771, 719712), (29988, 666504), (31752, 629476), (34272, 583191), (37028, 539784), (38556, 518392), (39984, 499878), (42336, 472107), (44064, 453593), (44982, 444336), (51408, 388794), (55542, 359856), (59976, 333252), (63504, 314738), (64799, 308448), (67473, 296224), (74056, 269892), (77112, 259196), (79968, 249939), (83313, 239904), (89964, 222168), (102816, 194397), (111084, 179928), (119952, 166626), (127008, 157369), (129598, 154224), (134946, 148112)]