81791680

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11113}}^1$

素因数の和:11153

約数の個数: 56

約数和(自身を含む): 203252832

約数和(自身を除く): 121461152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 3680, 7360, 11113, 22226, 44452, 55565, 88904, 111130, 177808, 222260, 255599, 355616, 444520, 511198, 711232, 889040, 1022396, 1277995, 1778080, 2044792, 2555990, 3556160, 4089584, 5111980, 8179168, 10223960, 16358336, 20447920, 40895840, 81791680]

約数ペア:

[(1, 81791680), (2, 40895840), (4, 20447920), (5, 16358336), (8, 10223960), (10, 8179168), (16, 5111980), (20, 4089584), (23, 3556160), (32, 2555990), (40, 2044792), (46, 1778080), (64, 1277995), (80, 1022396), (92, 889040), (115, 711232), (160, 511198), (184, 444520), (230, 355616), (320, 255599), (368, 222260), (460, 177808), (736, 111130), (920, 88904), (1472, 55565), (1840, 44452), (3680, 22226), (7360, 11113)]