257012816

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{518171}}^1$

素因数の和:518210

約数の個数: 20

約数和(自身を含む): 514026624

約数和(自身を除く): 257013808

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 518171, 1036342, 2072684, 4145368, 8290736, 16063301, 32126602, 64253204, 128506408, 257012816]

約数ペア:

[(1, 257012816), (2, 128506408), (4, 64253204), (8, 32126602), (16, 16063301), (31, 8290736), (62, 4145368), (124, 2072684), (248, 1036342), (496, 518171)]