128280913808

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{57680267}}^1$

素因数の和:57680414

約数の個数: 20

約数和(自身を含む): 250332363120

約数和(自身を除く): 122051449312

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 57680267, 115360534, 230721068, 461442136, 922884272, 8017557113, 16035114226, 32070228452, 64140456904, 128280913808]

約数ペア:

[(1, 128280913808), (2, 64140456904), (4, 32070228452), (8, 16035114226), (16, 8017557113), (139, 922884272), (278, 461442136), (556, 230721068), (1112, 115360534), (2224, 57680267)]