20365990

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 37674720

約数和(自身を除く): 17308730

約数列:

[1, 2, 5, 10, 67, 113, 134, 226, 269, 335, 538, 565, 670, 1130, 1345, 2690, 7571, 15142, 18023, 30397, 36046, 37855, 60794, 75710, 90115, 151985, 180230, 303970, 2036599, 4073198, 10182995, 20365990]

約数ペア:

[(1, 20365990), (2, 10182995), (5, 4073198), (10, 2036599), (67, 303970), (113, 180230), (134, 151985), (226, 90115), (269, 75710), (335, 60794), (538, 37855), (565, 36046), (670, 30397), (1130, 18023), (1345, 15142), (2690, 7571)]