1961211078220

素因数分解:

$2^2\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{80841347}}^1$

素因数の和:80842569

約数の個数: 24

約数和(自身を含む): 4121938651824

約数和(自身を除く): 2160727573604

約数列:

[1, 2, 4, 5, 10, 20, 1213, 2426, 4852, 6065, 12130, 24260, 80841347, 161682694, 323365388, 404206735, 808413470, 1616826940, 98060553911, 196121107822, 392242215644, 490302769555, 980605539110, 1961211078220]

約数ペア:

[(1, 1961211078220), (2, 980605539110), (4, 490302769555), (5, 392242215644), (10, 196121107822), (20, 98060553911), (1213, 1616826940), (2426, 808413470), (4852, 404206735), (6065, 323365388), (12130, 161682694), (24260, 80841347)]