81412128

素因数分解:

$2^5\times 3^4\times 7^2\times {\mathrm{641}}^1$

素因数の和:677

約数の個数: 180

約数和(自身を含む): 278956062

約数和(自身を除く): 197543934

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 96, 98, 108, 112, 126, 144, 147, 162, 168, 189, 196, 216, 224, 252, 288, 294, 324, 336, 378, 392, 432, 441, 504, 567, 588, 641, 648, 672, 756, 784, 864, 882, 1008, 1134, 1176, 1282, 1296, 1323, 1512, 1568, 1764, 1923, 2016, 2268, 2352, 2564, 2592, 2646, 3024, 3528, 3846, 3969, 4487, 4536, 4704, 5128, 5292, 5769, 6048, 7056, 7692, 7938, 8974, 9072, 10256, 10584, 11538, 13461, 14112, 15384, 15876, 17307, 17948, 18144, 20512, 21168, 23076, 26922, 30768, 31409, 31752, 34614, 35896, 40383, 42336, 46152, 51921, 53844, 61536, 62818, 63504, 69228, 71792, 80766, 92304, 94227, 103842, 107688, 121149, 125636, 127008, 138456, 143584, 161532, 184608, 188454, 207684, 215376, 242298, 251272, 276912, 282681, 323064, 363447, 376908, 415368, 430752, 484596, 502544, 553824, 565362, 646128, 726894, 753816, 830736, 848043, 969192, 1005088, 1130724, 1292256, 1453788, 1507632, 1661472, 1696086, 1938384, 2261448, 2544129, 2907576, 3015264, 3392172, 3876768, 4522896, 5088258, 5815152, 6784344, 9045792, 10176516, 11630304, 13568688, 20353032, 27137376, 40706064, 81412128]

約数ペア:

[(1, 81412128), (2, 40706064), (3, 27137376), (4, 20353032), (6, 13568688), (7, 11630304), (8, 10176516), (9, 9045792), (12, 6784344), (14, 5815152), (16, 5088258), (18, 4522896), (21, 3876768), (24, 3392172), (27, 3015264), (28, 2907576), (32, 2544129), (36, 2261448), (42, 1938384), (48, 1696086), (49, 1661472), (54, 1507632), (56, 1453788), (63, 1292256), (72, 1130724), (81, 1005088), (84, 969192), (96, 848043), (98, 830736), (108, 753816), (112, 726894), (126, 646128), (144, 565362), (147, 553824), (162, 502544), (168, 484596), (189, 430752), (196, 415368), (216, 376908), (224, 363447), (252, 323064), (288, 282681), (294, 276912), (324, 251272), (336, 242298), (378, 215376), (392, 207684), (432, 188454), (441, 184608), (504, 161532), (567, 143584), (588, 138456), (641, 127008), (648, 125636), (672, 121149), (756, 107688), (784, 103842), (864, 94227), (882, 92304), (1008, 80766), (1134, 71792), (1176, 69228), (1282, 63504), (1296, 62818), (1323, 61536), (1512, 53844), (1568, 51921), (1764, 46152), (1923, 42336), (2016, 40383), (2268, 35896), (2352, 34614), (2564, 31752), (2592, 31409), (2646, 30768), (3024, 26922), (3528, 23076), (3846, 21168), (3969, 20512), (4487, 18144), (4536, 17948), (4704, 17307), (5128, 15876), (5292, 15384), (5769, 14112), (6048, 13461), (7056, 11538), (7692, 10584), (7938, 10256), (8974, 9072)]