31224560

素因数分解:

$2^4\times 5^1\times {\mathrm{390307}}^1$

素因数の和:390320

約数の個数: 20

約数和(自身を含む): 72597288

約数和(自身を除く): 41372728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 390307, 780614, 1561228, 1951535, 3122456, 3903070, 6244912, 7806140, 15612280, 31224560]

約数ペア:

[(1, 31224560), (2, 15612280), (4, 7806140), (5, 6244912), (8, 3903070), (10, 3122456), (16, 1951535), (20, 1561228), (40, 780614), (80, 390307)]