203804780

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{19559}}^1$

素因数の和:20089

約数の個数: 24

約数和(自身を含む): 428833440

約数和(自身を除く): 225028660

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 19559, 39118, 78236, 97795, 195590, 391180, 10190239, 20380478, 40760956, 50951195, 101902390, 203804780]

約数ペア:

[(1, 203804780), (2, 101902390), (4, 50951195), (5, 40760956), (10, 20380478), (20, 10190239), (521, 391180), (1042, 195590), (2084, 97795), (2605, 78236), (5210, 39118), (10420, 19559)]