172977980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{4397}}^1$

素因数の和:4694

約数の個数: 48

約数和(自身を含む): 416719296

約数和(自身を除く): 243741316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 562, 1124, 1405, 1967, 2810, 3934, 4397, 5620, 7868, 8794, 9835, 17588, 19670, 21985, 30779, 39340, 43970, 61558, 87940, 123116, 153895, 307790, 615580, 1235557, 2471114, 4942228, 6177785, 8648899, 12355570, 17297798, 24711140, 34595596, 43244495, 86488990, 172977980]

約数ペア:

[(1, 172977980), (2, 86488990), (4, 43244495), (5, 34595596), (7, 24711140), (10, 17297798), (14, 12355570), (20, 8648899), (28, 6177785), (35, 4942228), (70, 2471114), (140, 1235557), (281, 615580), (562, 307790), (1124, 153895), (1405, 123116), (1967, 87940), (2810, 61558), (3934, 43970), (4397, 39340), (5620, 30779), (7868, 21985), (8794, 19670), (9835, 17588)]