31457260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22153}}^1$

素因数の和:22233

約数の個数: 24

約数和(自身を含む): 66993696

約数和(自身を除く): 35536436

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 22153, 44306, 88612, 110765, 221530, 443060, 1572863, 3145726, 6291452, 7864315, 15728630, 31457260]

約数ペア:

[(1, 31457260), (2, 15728630), (4, 7864315), (5, 6291452), (10, 3145726), (20, 1572863), (71, 443060), (142, 221530), (284, 110765), (355, 88612), (710, 44306), (1420, 22153)]