771620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{941}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 1661688

約数和(自身を除く): 890068

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 941, 1882, 3764, 4705, 9410, 18820, 38581, 77162, 154324, 192905, 385810, 771620]

約数ペア:

[(1, 771620), (2, 385810), (4, 192905), (5, 154324), (10, 77162), (20, 38581), (41, 18820), (82, 9410), (164, 4705), (205, 3764), (410, 1882), (820, 941)]