19596560

素因数分解:

$2^4\times 5^1\times {\mathrm{244957}}^1$

素因数の和:244970

約数の個数: 20

約数和(自身を含む): 45562188

約数和(自身を除く): 25965628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244957, 489914, 979828, 1224785, 1959656, 2449570, 3919312, 4899140, 9798280, 19596560]

約数ペア:

[(1, 19596560), (2, 9798280), (4, 4899140), (5, 3919312), (8, 2449570), (10, 1959656), (16, 1224785), (20, 979828), (40, 489914), (80, 244957)]