217381360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{388181}}^1$

素因数の和:388201

約数の個数: 40

約数和(自身を含む): 577614816

約数和(自身を除く): 360233456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 388181, 776362, 1552724, 1940905, 2717267, 3105448, 3881810, 5434534, 6210896, 7763620, 10869068, 13586335, 15527240, 21738136, 27172670, 31054480, 43476272, 54345340, 108690680, 217381360]

約数ペア:

[(1, 217381360), (2, 108690680), (4, 54345340), (5, 43476272), (7, 31054480), (8, 27172670), (10, 21738136), (14, 15527240), (16, 13586335), (20, 10869068), (28, 7763620), (35, 6210896), (40, 5434534), (56, 3881810), (70, 3105448), (80, 2717267), (112, 1940905), (140, 1552724), (280, 776362), (560, 388181)]