81273940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:769

約数の個数: 96

約数和(自身を含む): 203793408

約数和(自身を除く): 122519468

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 124, 155, 170, 187, 220, 310, 340, 341, 374, 527, 620, 682, 701, 748, 935, 1054, 1364, 1402, 1705, 1870, 2108, 2635, 2804, 3410, 3505, 3740, 5270, 5797, 6820, 7010, 7711, 10540, 11594, 11917, 14020, 15422, 21731, 23188, 23834, 28985, 30844, 38555, 43462, 47668, 57970, 59585, 77110, 86924, 108655, 115940, 119170, 131087, 154220, 217310, 238340, 239041, 262174, 369427, 434620, 478082, 524348, 655435, 738854, 956164, 1195205, 1310870, 1477708, 1847135, 2390410, 2621740, 3694270, 4063697, 4780820, 7388540, 8127394, 16254788, 20318485, 40636970, 81273940]

約数ペア:

[(1, 81273940), (2, 40636970), (4, 20318485), (5, 16254788), (10, 8127394), (11, 7388540), (17, 4780820), (20, 4063697), (22, 3694270), (31, 2621740), (34, 2390410), (44, 1847135), (55, 1477708), (62, 1310870), (68, 1195205), (85, 956164), (110, 738854), (124, 655435), (155, 524348), (170, 478082), (187, 434620), (220, 369427), (310, 262174), (340, 239041), (341, 238340), (374, 217310), (527, 154220), (620, 131087), (682, 119170), (701, 115940), (748, 108655), (935, 86924), (1054, 77110), (1364, 59585), (1402, 57970), (1705, 47668), (1870, 43462), (2108, 38555), (2635, 30844), (2804, 28985), (3410, 23834), (3505, 23188), (3740, 21731), (5270, 15422), (5797, 14020), (6820, 11917), (7010, 11594), (7711, 10540)]