20158670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4721}}^1$

素因数の和:4796

約数の個数: 32

約数和(自身を含む): 42158016

約数和(自身を除く): 21999346

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 4721, 9442, 23605, 33047, 47210, 66094, 165235, 287981, 330470, 575962, 1439905, 2015867, 2879810, 4031734, 10079335, 20158670]

約数ペア:

[(1, 20158670), (2, 10079335), (5, 4031734), (7, 2879810), (10, 2015867), (14, 1439905), (35, 575962), (61, 330470), (70, 287981), (122, 165235), (305, 66094), (427, 47210), (610, 33047), (854, 23605), (2135, 9442), (4270, 4721)]