66581380

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{4177}}^1$

素因数の和:4983

約数の個数: 24

約数和(自身を含む): 140029848

約数和(自身を除く): 73448468

約数列:

[1, 2, 4, 5, 10, 20, 797, 1594, 3188, 3985, 4177, 7970, 8354, 15940, 16708, 20885, 41770, 83540, 3329069, 6658138, 13316276, 16645345, 33290690, 66581380]

約数ペア:

[(1, 66581380), (2, 33290690), (4, 16645345), (5, 13316276), (10, 6658138), (20, 3329069), (797, 83540), (1594, 41770), (3188, 20885), (3985, 16708), (4177, 15940), (7970, 8354)]