20009355920

素因数分解:

$2^4\times 5^1\times {\mathrm{2663}}^1\times {\mathrm{93923}}^1$

素因数の和:96599

約数の個数: 40

約数和(自身を含む): 46539717696

約数和(自身を除く): 26530361776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2663, 5326, 10652, 13315, 21304, 26630, 42608, 53260, 93923, 106520, 187846, 213040, 375692, 469615, 751384, 939230, 1502768, 1878460, 3756920, 7513840, 250116949, 500233898, 1000467796, 1250584745, 2000935592, 2501169490, 4001871184, 5002338980, 10004677960, 20009355920]

約数ペア:

[(1, 20009355920), (2, 10004677960), (4, 5002338980), (5, 4001871184), (8, 2501169490), (10, 2000935592), (16, 1250584745), (20, 1000467796), (40, 500233898), (80, 250116949), (2663, 7513840), (5326, 3756920), (10652, 1878460), (13315, 1502768), (21304, 939230), (26630, 751384), (42608, 469615), (53260, 375692), (93923, 213040), (106520, 187846)]