20959250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6449}}^1$

素因数の和:6479

約数の個数: 32

約数和(自身を含む): 42260400

約数和(自身を除く): 21301150

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6449, 12898, 32245, 64490, 83837, 161225, 167674, 322450, 419185, 806125, 838370, 1612250, 2095925, 4191850, 10479625, 20959250]

約数ペア:

[(1, 20959250), (2, 10479625), (5, 4191850), (10, 2095925), (13, 1612250), (25, 838370), (26, 806125), (50, 419185), (65, 322450), (125, 167674), (130, 161225), (250, 83837), (325, 64490), (650, 32245), (1625, 12898), (3250, 6449)]