256474816

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{308263}}^1$

素因数の和:308288

約数の個数: 28

約数和(自身を含む): 548093392

約数和(自身を除く): 291618576

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 308263, 616526, 1233052, 2466104, 4007419, 4932208, 8014838, 9864416, 16029676, 19728832, 32059352, 64118704, 128237408, 256474816]

約数ペア:

[(1, 256474816), (2, 128237408), (4, 64118704), (8, 32059352), (13, 19728832), (16, 16029676), (26, 9864416), (32, 8014838), (52, 4932208), (64, 4007419), (104, 2466104), (208, 1233052), (416, 616526), (832, 308263)]