31938640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5623}}^1$

素因数の和:5707

約数の個数: 40

約数和(自身を含む): 75316608

約数和(自身を除く): 43377968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5623, 5680, 11246, 22492, 28115, 44984, 56230, 89968, 112460, 224920, 399233, 449840, 798466, 1596932, 1996165, 3193864, 3992330, 6387728, 7984660, 15969320, 31938640]

約数ペア:

[(1, 31938640), (2, 15969320), (4, 7984660), (5, 6387728), (8, 3992330), (10, 3193864), (16, 1996165), (20, 1596932), (40, 798466), (71, 449840), (80, 399233), (142, 224920), (284, 112460), (355, 89968), (568, 56230), (710, 44984), (1136, 28115), (1420, 22492), (2840, 11246), (5623, 5680)]