256985170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1976809}}^1$

素因数の和:1976829

約数の個数: 16

約数和(自身を含む): 498156120

約数和(自身を除く): 241170950

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1976809, 3953618, 9884045, 19768090, 25698517, 51397034, 128492585, 256985170]

約数ペア:

[(1, 256985170), (2, 128492585), (5, 51397034), (10, 25698517), (13, 19768090), (26, 9884045), (65, 3953618), (130, 1976809)]