266009575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{1571}}^1$

素因数の和:2115

約数の個数: 24

約数和(自身を含む): 356133456

約数和(自身を除く): 90123881

約数列:

[1, 5, 13, 25, 65, 325, 521, 1571, 2605, 6773, 7855, 13025, 20423, 33865, 39275, 102115, 169325, 510575, 818491, 4092455, 10640383, 20462275, 53201915, 266009575]

約数ペア:

[(1, 266009575), (5, 53201915), (13, 20462275), (25, 10640383), (65, 4092455), (325, 818491), (521, 510575), (1571, 169325), (2605, 102115), (6773, 39275), (7855, 33865), (13025, 20423)]