20629810

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3121}}^1$

素因数の和:3789

約数の個数: 16

約数和(自身を含む): 37201752

約数和(自身を除く): 16571942

約数列:

[1, 2, 5, 10, 661, 1322, 3121, 3305, 6242, 6610, 15605, 31210, 2062981, 4125962, 10314905, 20629810]

約数ペア:

[(1, 20629810), (2, 10314905), (5, 4125962), (10, 2062981), (661, 31210), (1322, 15605), (3121, 6610), (3305, 6242)]