128195620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{915683}}^1$

素因数の和:915699

約数の個数: 24

約数和(自身を含む): 307669824

約数和(自身を除く): 179474204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 915683, 1831366, 3662732, 4578415, 6409781, 9156830, 12819562, 18313660, 25639124, 32048905, 64097810, 128195620]

約数ペア:

[(1, 128195620), (2, 64097810), (4, 32048905), (5, 25639124), (7, 18313660), (10, 12819562), (14, 9156830), (20, 6409781), (28, 4578415), (35, 3662732), (70, 1831366), (140, 915683)]