16840220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{15887}}^1$

素因数の和:15949

約数の個数: 24

約数和(自身を含む): 36033984

約数和(自身を除く): 19193764

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 15887, 31774, 63548, 79435, 158870, 317740, 842011, 1684022, 3368044, 4210055, 8420110, 16840220]

約数ペア:

[(1, 16840220), (2, 8420110), (4, 4210055), (5, 3368044), (10, 1684022), (20, 842011), (53, 317740), (106, 158870), (212, 79435), (265, 63548), (530, 31774), (1060, 15887)]