208889740

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{20047}}^1$

素因数の和:20577

約数の個数: 24

約数和(自身を含む): 439532352

約数和(自身を除く): 230642612

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 20047, 40094, 80188, 100235, 200470, 400940, 10444487, 20888974, 41777948, 52222435, 104444870, 208889740]

約数ペア:

[(1, 208889740), (2, 104444870), (4, 52222435), (5, 41777948), (10, 20888974), (20, 10444487), (521, 400940), (1042, 200470), (2084, 100235), (2605, 80188), (5210, 40094), (10420, 20047)]