3957640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{607}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 8974080

約数和(自身を除く): 5016440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 607, 652, 815, 1214, 1304, 1630, 2428, 3035, 3260, 4856, 6070, 6520, 12140, 24280, 98941, 197882, 395764, 494705, 791528, 989410, 1978820, 3957640]

約数ペア:

[(1, 3957640), (2, 1978820), (4, 989410), (5, 791528), (8, 494705), (10, 395764), (20, 197882), (40, 98941), (163, 24280), (326, 12140), (607, 6520), (652, 6070), (815, 4856), (1214, 3260), (1304, 3035), (1630, 2428)]