128978828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{26893}}^1$

素因数の和:27017

約数の個数: 24

約数和(自身を含む): 248500560

約数和(自身を除く): 119521732

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4796, 26893, 53786, 107572, 295823, 591646, 1183292, 2931337, 5862674, 11725348, 32244707, 64489414, 128978828]

約数ペア:

[(1, 128978828), (2, 64489414), (4, 32244707), (11, 11725348), (22, 5862674), (44, 2931337), (109, 1183292), (218, 591646), (436, 295823), (1199, 107572), (2398, 53786), (4796, 26893)]