209909360

素因数分解:

$2^4\times 5^1\times {\mathrm{2623867}}^1$

素因数の和:2623880

約数の個数: 20

約数和(自身を含む): 488039448

約数和(自身を除く): 278130088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2623867, 5247734, 10495468, 13119335, 20990936, 26238670, 41981872, 52477340, 104954680, 209909360]

約数ペア:

[(1, 209909360), (2, 104954680), (4, 52477340), (5, 41981872), (8, 26238670), (10, 20990936), (16, 13119335), (20, 10495468), (40, 5247734), (80, 2623867)]