138435856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{665557}}^1$

素因数の和:665578

約数の個数: 20

約数和(自身を含む): 288852172

約数和(自身を除く): 150416316

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 665557, 1331114, 2662228, 5324456, 8652241, 10648912, 17304482, 34608964, 69217928, 138435856]

約数ペア:

[(1, 138435856), (2, 69217928), (4, 34608964), (8, 17304482), (13, 10648912), (16, 8652241), (26, 5324456), (52, 2662228), (104, 1331114), (208, 665557)]