20151505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2459}}^1$

素因数の和:2624

約数の個数: 16

約数和(自身を含む): 26568000

約数和(自身を除く): 6416495

約数列:

[1, 5, 11, 55, 149, 745, 1639, 2459, 8195, 12295, 27049, 135245, 366391, 1831955, 4030301, 20151505]

約数ペア:

[(1, 20151505), (5, 4030301), (11, 1831955), (55, 366391), (149, 135245), (745, 27049), (1639, 12295), (2459, 8195)]