20120816

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12451}}^1$

素因数の和:12560

約数の個数: 20

約数和(自身を含む): 39373224

約数和(自身を除く): 19252408

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12451, 24902, 49804, 99608, 199216, 1257551, 2515102, 5030204, 10060408, 20120816]

約数ペア:

[(1, 20120816), (2, 10060408), (4, 5030204), (8, 2515102), (16, 1257551), (101, 199216), (202, 99608), (404, 49804), (808, 24902), (1616, 12451)]