42487820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29921}}^1$

素因数の和:30001

約数の個数: 24

約数和(自身を含む): 90484128

約数和(自身を除く): 47996308

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 29921, 59842, 119684, 149605, 299210, 598420, 2124391, 4248782, 8497564, 10621955, 21243910, 42487820]

約数ペア:

[(1, 42487820), (2, 21243910), (4, 10621955), (5, 8497564), (10, 4248782), (20, 2124391), (71, 598420), (142, 299210), (284, 149605), (355, 119684), (710, 59842), (1420, 29921)]