81482960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1667}}^1$

素因数の和:1740

約数の個数: 80

約数和(自身を含む): 208486656

約数和(自身を除く): 127003696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 376, 470, 520, 611, 752, 940, 1040, 1222, 1667, 1880, 2444, 3055, 3334, 3760, 4888, 6110, 6668, 8335, 9776, 12220, 13336, 16670, 21671, 24440, 26672, 33340, 43342, 48880, 66680, 78349, 86684, 108355, 133360, 156698, 173368, 216710, 313396, 346736, 391745, 433420, 626792, 783490, 866840, 1018537, 1253584, 1566980, 1733680, 2037074, 3133960, 4074148, 5092685, 6267920, 8148296, 10185370, 16296592, 20370740, 40741480, 81482960]

約数ペア:

[(1, 81482960), (2, 40741480), (4, 20370740), (5, 16296592), (8, 10185370), (10, 8148296), (13, 6267920), (16, 5092685), (20, 4074148), (26, 3133960), (40, 2037074), (47, 1733680), (52, 1566980), (65, 1253584), (80, 1018537), (94, 866840), (104, 783490), (130, 626792), (188, 433420), (208, 391745), (235, 346736), (260, 313396), (376, 216710), (470, 173368), (520, 156698), (611, 133360), (752, 108355), (940, 86684), (1040, 78349), (1222, 66680), (1667, 48880), (1880, 43342), (2444, 33340), (3055, 26672), (3334, 24440), (3760, 21671), (4888, 16670), (6110, 13336), (6668, 12220), (8335, 9776)]