19138960

素因数分解:

$2^4\times 5^1\times {\mathrm{239237}}^1$

素因数の和:239250

約数の個数: 20

約数和(自身を含む): 44498268

約数和(自身を除く): 25359308

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239237, 478474, 956948, 1196185, 1913896, 2392370, 3827792, 4784740, 9569480, 19138960]

約数ペア:

[(1, 19138960), (2, 9569480), (4, 4784740), (5, 3827792), (8, 2392370), (10, 1913896), (16, 1196185), (20, 956948), (40, 478474), (80, 239237)]