20237560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72277}}^1$

素因数の和:72295

約数の個数: 32

約数和(自身を含む): 52040160

約数和(自身を除く): 31802600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72277, 144554, 289108, 361385, 505939, 578216, 722770, 1011878, 1445540, 2023756, 2529695, 2891080, 4047512, 5059390, 10118780, 20237560]

約数ペア:

[(1, 20237560), (2, 10118780), (4, 5059390), (5, 4047512), (7, 2891080), (8, 2529695), (10, 2023756), (14, 1445540), (20, 1011878), (28, 722770), (35, 578216), (40, 505939), (56, 361385), (70, 289108), (140, 144554), (280, 72277)]