20571717720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3986767}}^1$

素因数の和:3986824

約数の個数: 64

約数和(自身を含む): 63150405120

約数和(自身を除く): 42578687400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 5160, 3986767, 7973534, 11960301, 15947068, 19933835, 23920602, 31894136, 39867670, 47841204, 59801505, 79735340, 95682408, 119603010, 159470680, 171430981, 239206020, 342861962, 478412040, 514292943, 685723924, 857154905, 1028585886, 1371447848, 1714309810, 2057171772, 2571464715, 3428619620, 4114343544, 5142929430, 6857239240, 10285858860, 20571717720]

約数ペア:

[(1, 20571717720), (2, 10285858860), (3, 6857239240), (4, 5142929430), (5, 4114343544), (6, 3428619620), (8, 2571464715), (10, 2057171772), (12, 1714309810), (15, 1371447848), (20, 1028585886), (24, 857154905), (30, 685723924), (40, 514292943), (43, 478412040), (60, 342861962), (86, 239206020), (120, 171430981), (129, 159470680), (172, 119603010), (215, 95682408), (258, 79735340), (344, 59801505), (430, 47841204), (516, 39867670), (645, 31894136), (860, 23920602), (1032, 19933835), (1290, 15947068), (1720, 11960301), (2580, 7973534), (5160, 3986767)]