20121203380

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1786963}}^1$

素因数の和:1787535

約数の個数: 24

約数和(自身を含む): 42329603232

約数和(自身を除く): 22208399852

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 2252, 2815, 5630, 11260, 1786963, 3573926, 7147852, 8934815, 17869630, 35739260, 1006060169, 2012120338, 4024240676, 5030300845, 10060601690, 20121203380]

約数ペア:

[(1, 20121203380), (2, 10060601690), (4, 5030300845), (5, 4024240676), (10, 2012120338), (20, 1006060169), (563, 35739260), (1126, 17869630), (2252, 8934815), (2815, 7147852), (5630, 3573926), (11260, 1786963)]