131031860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{859}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 286070400

約数和(自身を除く): 155038540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 263, 290, 526, 580, 859, 1052, 1315, 1718, 2630, 3436, 4295, 5260, 7627, 8590, 15254, 17180, 24911, 30508, 38135, 49822, 76270, 99644, 124555, 152540, 225917, 249110, 451834, 498220, 903668, 1129585, 2259170, 4518340, 6551593, 13103186, 26206372, 32757965, 65515930, 131031860]

約数ペア:

[(1, 131031860), (2, 65515930), (4, 32757965), (5, 26206372), (10, 13103186), (20, 6551593), (29, 4518340), (58, 2259170), (116, 1129585), (145, 903668), (263, 498220), (290, 451834), (526, 249110), (580, 225917), (859, 152540), (1052, 124555), (1315, 99644), (1718, 76270), (2630, 49822), (3436, 38135), (4295, 30508), (5260, 24911), (7627, 17180), (8590, 15254)]