31161620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2161}}^1$

素因数の和:2280

約数の個数: 48

約数和(自身を含む): 75548928

約数和(自身を除く): 44387308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2161, 2884, 3605, 4322, 7210, 8644, 10805, 14420, 15127, 21610, 30254, 43220, 60508, 75635, 151270, 222583, 302540, 445166, 890332, 1112915, 1558081, 2225830, 3116162, 4451660, 6232324, 7790405, 15580810, 31161620]

約数ペア:

[(1, 31161620), (2, 15580810), (4, 7790405), (5, 6232324), (7, 4451660), (10, 3116162), (14, 2225830), (20, 1558081), (28, 1112915), (35, 890332), (70, 445166), (103, 302540), (140, 222583), (206, 151270), (412, 75635), (515, 60508), (721, 43220), (1030, 30254), (1442, 21610), (2060, 15127), (2161, 14420), (2884, 10805), (3605, 8644), (4322, 7210)]