20046985

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 28553472

約数和(自身を除く): 8506487

約数列:

[1, 5, 7, 35, 53, 101, 107, 265, 371, 505, 535, 707, 749, 1855, 3535, 3745, 5353, 5671, 10807, 26765, 28355, 37471, 39697, 54035, 75649, 187355, 198485, 378245, 572771, 2863855, 4009397, 20046985]

約数ペア:

[(1, 20046985), (5, 4009397), (7, 2863855), (35, 572771), (53, 378245), (101, 198485), (107, 187355), (265, 75649), (371, 54035), (505, 39697), (535, 37471), (707, 28355), (749, 26765), (1855, 10807), (3535, 5671), (3745, 5353)]