215960020

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{24049}}^1$

素因数の和:24507

約数の個数: 24

約数和(自身を含む): 454545000

約数和(自身を除く): 238584980

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8980, 24049, 48098, 96196, 120245, 240490, 480980, 10798001, 21596002, 43192004, 53990005, 107980010, 215960020]

約数ペア:

[(1, 215960020), (2, 107980010), (4, 53990005), (5, 43192004), (10, 21596002), (20, 10798001), (449, 480980), (898, 240490), (1796, 120245), (2245, 96196), (4490, 48098), (8980, 24049)]