31039820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{221713}}^1$

素因数の和:221729

約数の個数: 24

約数和(自身を含む): 74495904

約数和(自身を除く): 43456084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 221713, 443426, 886852, 1108565, 1551991, 2217130, 3103982, 4434260, 6207964, 7759955, 15519910, 31039820]

約数ペア:

[(1, 31039820), (2, 15519910), (4, 7759955), (5, 6207964), (7, 4434260), (10, 3103982), (14, 2217130), (20, 1551991), (28, 1108565), (35, 886852), (70, 443426), (140, 221713)]