20446822840

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2138789}}^1$

素因数の和:2139039

約数の個数: 32

約数和(自身を含む): 46197864000

約数和(自身を除く): 25751041160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 2138789, 4277578, 8555156, 10693945, 17110312, 21387890, 42775780, 85551560, 511170571, 1022341142, 2044682284, 2555852855, 4089364568, 5111705710, 10223411420, 20446822840]

約数ペア:

[(1, 20446822840), (2, 10223411420), (4, 5111705710), (5, 4089364568), (8, 2555852855), (10, 2044682284), (20, 1022341142), (40, 511170571), (239, 85551560), (478, 42775780), (956, 21387890), (1195, 17110312), (1912, 10693945), (2390, 8555156), (4780, 4277578), (9560, 2138789)]