393408580

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{117787}}^1$

素因数の和:117963

約数の個数: 24

約数和(自身を含む): 831112128

約数和(自身を除く): 437703548

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 117787, 235574, 471148, 588935, 1177870, 2355740, 19670429, 39340858, 78681716, 98352145, 196704290, 393408580]

約数ペア:

[(1, 393408580), (2, 196704290), (4, 98352145), (5, 78681716), (10, 39340858), (20, 19670429), (167, 2355740), (334, 1177870), (668, 588935), (835, 471148), (1670, 235574), (3340, 117787)]