25051640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8821}}^1$

素因数の和:8903

約数の個数: 32

約数和(自身を含む): 57166560

約数和(自身を除く): 32114920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 8821, 17642, 35284, 44105, 70568, 88210, 176420, 352840, 626291, 1252582, 2505164, 3131455, 5010328, 6262910, 12525820, 25051640]

約数ペア:

[(1, 25051640), (2, 12525820), (4, 6262910), (5, 5010328), (8, 3131455), (10, 2505164), (20, 1252582), (40, 626291), (71, 352840), (142, 176420), (284, 88210), (355, 70568), (568, 44105), (710, 35284), (1420, 17642), (2840, 8821)]