20024240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5821}}^1$

素因数の和:5877

約数の個数: 40

約数和(自身を含む): 47647248

約数和(自身を除く): 27623008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5821, 11642, 23284, 29105, 46568, 58210, 93136, 116420, 232840, 250303, 465680, 500606, 1001212, 1251515, 2002424, 2503030, 4004848, 5006060, 10012120, 20024240]

約数ペア:

[(1, 20024240), (2, 10012120), (4, 5006060), (5, 4004848), (8, 2503030), (10, 2002424), (16, 1251515), (20, 1001212), (40, 500606), (43, 465680), (80, 250303), (86, 232840), (172, 116420), (215, 93136), (344, 58210), (430, 46568), (688, 29105), (860, 23284), (1720, 11642), (3440, 5821)]