325540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 702072

約数和(自身を除く): 376532

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 397, 410, 794, 820, 1588, 1985, 3970, 7940, 16277, 32554, 65108, 81385, 162770, 325540]

約数ペア:

[(1, 325540), (2, 162770), (4, 81385), (5, 65108), (10, 32554), (20, 16277), (41, 7940), (82, 3970), (164, 1985), (205, 1588), (397, 820), (410, 794)]