20045065

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1637}}^1$

素因数の和:1752

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 5114615

約数列:

[1, 5, 31, 79, 155, 395, 1637, 2449, 8185, 12245, 50747, 129323, 253735, 646615, 4009013, 20045065]

約数ペア:

[(1, 20045065), (5, 4009013), (31, 646615), (79, 253735), (155, 129323), (395, 50747), (1637, 12245), (2449, 8185)]