51560360

素因数分解:

$2^3\times 5^1\times {\mathrm{1289009}}^1$

素因数の和:1289020

約数の個数: 16

約数和(自身を含む): 116010900

約数和(自身を除く): 64450540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1289009, 2578018, 5156036, 6445045, 10312072, 12890090, 25780180, 51560360]

約数ペア:

[(1, 51560360), (2, 25780180), (4, 12890090), (5, 10312072), (8, 6445045), (10, 5156036), (20, 2578018), (40, 1289009)]