18217322020

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1810867}}^1$

素因数の和:1811379

約数の個数: 24

約数和(自身を含む): 38332453824

約数和(自身を除く): 20115131804

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 5030, 10060, 1810867, 3621734, 7243468, 9054335, 18108670, 36217340, 910866101, 1821732202, 3643464404, 4554330505, 9108661010, 18217322020]

約数ペア:

[(1, 18217322020), (2, 9108661010), (4, 4554330505), (5, 3643464404), (10, 1821732202), (20, 910866101), (503, 36217340), (1006, 18108670), (2012, 9054335), (2515, 7243468), (5030, 3621734), (10060, 1810867)]