31022020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11159}}^1$

素因数の和:11307

約数の個数: 24

約数和(自身を含む): 65620800

約数和(自身を除く): 34598780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 11159, 22318, 44636, 55795, 111590, 223180, 1551101, 3102202, 6204404, 7755505, 15511010, 31022020]

約数ペア:

[(1, 31022020), (2, 15511010), (4, 7755505), (5, 6204404), (10, 3102202), (20, 1551101), (139, 223180), (278, 111590), (556, 55795), (695, 44636), (1390, 22318), (2780, 11159)]