20121800

素因数分解:

$2^3\times 5^2\times {\mathrm{100609}}^1$

素因数の和:100625

約数の個数: 24

約数和(自身を含む): 46783650

約数和(自身を除く): 26661850

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 100609, 201218, 402436, 503045, 804872, 1006090, 2012180, 2515225, 4024360, 5030450, 10060900, 20121800]

約数ペア:

[(1, 20121800), (2, 10060900), (4, 5030450), (5, 4024360), (8, 2515225), (10, 2012180), (20, 1006090), (25, 804872), (40, 503045), (50, 402436), (100, 201218), (200, 100609)]