78990660

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{20897}}^1$

素因数の和:20922

約数の個数: 96

約数和(自身を含む): 280869120

約数和(自身を除く): 201878460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 20897, 41794, 62691, 83588, 104485, 125382, 146279, 188073, 208970, 250764, 292558, 313455, 376146, 417940, 438837, 564219, 585116, 626910, 731395, 752292, 877674, 940365, 1128438, 1253820, 1316511, 1462790, 1755348, 1880730, 2194185, 2256876, 2633022, 2821095, 2925580, 3761460, 3949533, 4388370, 5266044, 5642190, 6582555, 7899066, 8776740, 11284380, 13165110, 15798132, 19747665, 26330220, 39495330, 78990660]

約数ペア:

[(1, 78990660), (2, 39495330), (3, 26330220), (4, 19747665), (5, 15798132), (6, 13165110), (7, 11284380), (9, 8776740), (10, 7899066), (12, 6582555), (14, 5642190), (15, 5266044), (18, 4388370), (20, 3949533), (21, 3761460), (27, 2925580), (28, 2821095), (30, 2633022), (35, 2256876), (36, 2194185), (42, 1880730), (45, 1755348), (54, 1462790), (60, 1316511), (63, 1253820), (70, 1128438), (84, 940365), (90, 877674), (105, 752292), (108, 731395), (126, 626910), (135, 585116), (140, 564219), (180, 438837), (189, 417940), (210, 376146), (252, 313455), (270, 292558), (315, 250764), (378, 208970), (420, 188073), (540, 146279), (630, 125382), (756, 104485), (945, 83588), (1260, 62691), (1890, 41794), (3780, 20897)]