1908522320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{554803}}^1$

素因数の和:554859

約数の個数: 40

約数和(自身を含む): 4540515936

約数和(自身を除く): 2631993616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 554803, 1109606, 2219212, 2774015, 4438424, 5548030, 8876848, 11096060, 22192120, 23856529, 44384240, 47713058, 95426116, 119282645, 190852232, 238565290, 381704464, 477130580, 954261160, 1908522320]

約数ペア:

[(1, 1908522320), (2, 954261160), (4, 477130580), (5, 381704464), (8, 238565290), (10, 190852232), (16, 119282645), (20, 95426116), (40, 47713058), (43, 44384240), (80, 23856529), (86, 22192120), (172, 11096060), (215, 8876848), (344, 5548030), (430, 4438424), (688, 2774015), (860, 2219212), (1720, 1109606), (3440, 554803)]