128666512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{618589}}^1$

素因数の和:618610

約数の個数: 20

約数和(自身を含む): 268468060

約数和(自身を除く): 139801548

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 618589, 1237178, 2474356, 4948712, 8041657, 9897424, 16083314, 32166628, 64333256, 128666512]

約数ペア:

[(1, 128666512), (2, 64333256), (4, 32166628), (8, 16083314), (13, 9897424), (16, 8041657), (26, 4948712), (52, 2474356), (104, 1237178), (208, 618589)]