64800580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249233}}^1$

素因数の和:249255

約数の個数: 24

約数和(自身を含む): 146549592

約数和(自身を除く): 81749012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 249233, 498466, 996932, 1246165, 2492330, 3240029, 4984660, 6480058, 12960116, 16200145, 32400290, 64800580]

約数ペア:

[(1, 64800580), (2, 32400290), (4, 16200145), (5, 12960116), (10, 6480058), (13, 4984660), (20, 3240029), (26, 2492330), (52, 1246165), (65, 996932), (130, 498466), (260, 249233)]