1040020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 2205000

約数和(自身を除く): 1164980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 349, 596, 698, 745, 1396, 1490, 1745, 2980, 3490, 6980, 52001, 104002, 208004, 260005, 520010, 1040020]

約数ペア:

[(1, 1040020), (2, 520010), (4, 260005), (5, 208004), (10, 104002), (20, 52001), (149, 6980), (298, 3490), (349, 2980), (596, 1745), (698, 1490), (745, 1396)]