3840220

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1223}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 8122464

約数和(自身を除く): 4282244

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1223, 1570, 2446, 3140, 4892, 6115, 12230, 24460, 192011, 384022, 768044, 960055, 1920110, 3840220]

約数ペア:

[(1, 3840220), (2, 1920110), (4, 960055), (5, 768044), (10, 384022), (20, 192011), (157, 24460), (314, 12230), (628, 6115), (785, 4892), (1223, 3140), (1570, 2446)]