20475189840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12187613}}^1$

素因数の和:12187636

約数の個数: 80

約数和(自身を含む): 72540678528

約数和(自身を除く): 52065488688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12187613, 24375226, 36562839, 48750452, 60938065, 73125678, 85313291, 97500904, 121876130, 146251356, 170626582, 182814195, 195001808, 243752260, 255939873, 292502712, 341253164, 365628390, 426566455, 487504520, 511879746, 585005424, 682506328, 731256780, 853132910, 975009040, 1023759492, 1279699365, 1365012656, 1462513560, 1706265820, 2047518984, 2559398730, 2925027120, 3412531640, 4095037968, 5118797460, 6825063280, 10237594920, 20475189840]

約数ペア:

[(1, 20475189840), (2, 10237594920), (3, 6825063280), (4, 5118797460), (5, 4095037968), (6, 3412531640), (7, 2925027120), (8, 2559398730), (10, 2047518984), (12, 1706265820), (14, 1462513560), (15, 1365012656), (16, 1279699365), (20, 1023759492), (21, 975009040), (24, 853132910), (28, 731256780), (30, 682506328), (35, 585005424), (40, 511879746), (42, 487504520), (48, 426566455), (56, 365628390), (60, 341253164), (70, 292502712), (80, 255939873), (84, 243752260), (105, 195001808), (112, 182814195), (120, 170626582), (140, 146251356), (168, 121876130), (210, 97500904), (240, 85313291), (280, 73125678), (336, 60938065), (420, 48750452), (560, 36562839), (840, 24375226), (1680, 12187613)]