2157457360

素因数分解:

$2^4\times 5^1\times {\mathrm{26968217}}^1$

素因数の和:26968230

約数の個数: 20

約数和(自身を含む): 5016088548

約数和(自身を除く): 2858631188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26968217, 53936434, 107872868, 134841085, 215745736, 269682170, 431491472, 539364340, 1078728680, 2157457360]

約数ペア:

[(1, 2157457360), (2, 1078728680), (4, 539364340), (5, 431491472), (8, 269682170), (10, 215745736), (16, 134841085), (20, 107872868), (40, 53936434), (80, 26968217)]