28685664

素因数分解:

$2^5\times 3^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 288

約数和(自身を含む): 105670656

約数和(自身を除く): 76984992

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 31, 32, 34, 36, 42, 48, 51, 54, 56, 62, 63, 68, 72, 81, 84, 93, 96, 102, 108, 112, 119, 124, 126, 136, 144, 153, 162, 168, 186, 189, 204, 216, 217, 224, 238, 243, 248, 252, 272, 279, 288, 306, 324, 336, 357, 372, 378, 408, 432, 434, 459, 476, 486, 496, 504, 527, 544, 558, 567, 612, 648, 651, 672, 714, 744, 756, 816, 837, 864, 868, 918, 952, 972, 992, 1008, 1054, 1071, 1116, 1134, 1224, 1296, 1302, 1377, 1428, 1488, 1512, 1581, 1632, 1674, 1701, 1736, 1836, 1904, 1944, 1953, 2016, 2108, 2142, 2232, 2268, 2448, 2511, 2592, 2604, 2754, 2856, 2976, 3024, 3162, 3213, 3348, 3402, 3472, 3672, 3689, 3808, 3888, 3906, 4131, 4216, 4284, 4464, 4536, 4743, 4896, 5022, 5208, 5508, 5712, 5859, 6048, 6324, 6426, 6696, 6804, 6944, 7344, 7378, 7533, 7776, 7812, 8262, 8432, 8568, 8928, 9072, 9486, 9639, 10044, 10416, 11016, 11067, 11424, 11718, 12648, 12852, 13392, 13608, 14229, 14688, 14756, 15066, 15624, 16524, 16864, 17136, 17577, 18144, 18972, 19278, 20088, 20832, 22032, 22134, 23436, 25296, 25704, 26784, 27216, 28458, 28917, 29512, 30132, 31248, 33048, 33201, 34272, 35154, 37944, 38556, 40176, 42687, 44064, 44268, 46872, 50592, 51408, 52731, 54432, 56916, 57834, 59024, 60264, 62496, 66096, 66402, 70308, 75888, 77112, 80352, 85374, 88536, 93744, 99603, 102816, 105462, 113832, 115668, 118048, 120528, 128061, 132192, 132804, 140616, 151776, 154224, 170748, 177072, 187488, 199206, 210924, 227664, 231336, 241056, 256122, 265608, 281232, 298809, 308448, 341496, 354144, 398412, 421848, 455328, 462672, 512244, 531216, 562464, 597618, 682992, 796824, 843696, 896427, 925344, 1024488, 1062432, 1195236, 1365984, 1593648, 1687392, 1792854, 2048976, 2390472, 3187296, 3585708, 4097952, 4780944, 7171416, 9561888, 14342832, 28685664]

約数ペア:

[(1, 28685664), (2, 14342832), (3, 9561888), (4, 7171416), (6, 4780944), (7, 4097952), (8, 3585708), (9, 3187296), (12, 2390472), (14, 2048976), (16, 1792854), (17, 1687392), (18, 1593648), (21, 1365984), (24, 1195236), (27, 1062432), (28, 1024488), (31, 925344), (32, 896427), (34, 843696), (36, 796824), (42, 682992), (48, 597618), (51, 562464), (54, 531216), (56, 512244), (62, 462672), (63, 455328), (68, 421848), (72, 398412), (81, 354144), (84, 341496), (93, 308448), (96, 298809), (102, 281232), (108, 265608), (112, 256122), (119, 241056), (124, 231336), (126, 227664), (136, 210924), (144, 199206), (153, 187488), (162, 177072), (168, 170748), (186, 154224), (189, 151776), (204, 140616), (216, 132804), (217, 132192), (224, 128061), (238, 120528), (243, 118048), (248, 115668), (252, 113832), (272, 105462), (279, 102816), (288, 99603), (306, 93744), (324, 88536), (336, 85374), (357, 80352), (372, 77112), (378, 75888), (408, 70308), (432, 66402), (434, 66096), (459, 62496), (476, 60264), (486, 59024), (496, 57834), (504, 56916), (527, 54432), (544, 52731), (558, 51408), (567, 50592), (612, 46872), (648, 44268), (651, 44064), (672, 42687), (714, 40176), (744, 38556), (756, 37944), (816, 35154), (837, 34272), (864, 33201), (868, 33048), (918, 31248), (952, 30132), (972, 29512), (992, 28917), (1008, 28458), (1054, 27216), (1071, 26784), (1116, 25704), (1134, 25296), (1224, 23436), (1296, 22134), (1302, 22032), (1377, 20832), (1428, 20088), (1488, 19278), (1512, 18972), (1581, 18144), (1632, 17577), (1674, 17136), (1701, 16864), (1736, 16524), (1836, 15624), (1904, 15066), (1944, 14756), (1953, 14688), (2016, 14229), (2108, 13608), (2142, 13392), (2232, 12852), (2268, 12648), (2448, 11718), (2511, 11424), (2592, 11067), (2604, 11016), (2754, 10416), (2856, 10044), (2976, 9639), (3024, 9486), (3162, 9072), (3213, 8928), (3348, 8568), (3402, 8432), (3472, 8262), (3672, 7812), (3689, 7776), (3808, 7533), (3888, 7378), (3906, 7344), (4131, 6944), (4216, 6804), (4284, 6696), (4464, 6426), (4536, 6324), (4743, 6048), (4896, 5859), (5022, 5712), (5208, 5508)]