156980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 338688

約数和(自身を除く): 181708

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 167, 188, 235, 334, 470, 668, 835, 940, 1670, 3340, 7849, 15698, 31396, 39245, 78490, 156980]

約数ペア:

[(1, 156980), (2, 78490), (4, 39245), (5, 31396), (10, 15698), (20, 7849), (47, 3340), (94, 1670), (167, 940), (188, 835), (235, 668), (334, 470)]