31085140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{457}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 69249600

約数和(自身を除く): 38164460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 457, 716, 895, 914, 1790, 1828, 2285, 3401, 3580, 4570, 6802, 8683, 9140, 13604, 17005, 17366, 34010, 34732, 43415, 68020, 81803, 86830, 163606, 173660, 327212, 409015, 818030, 1554257, 1636060, 3108514, 6217028, 7771285, 15542570, 31085140]

約数ペア:

[(1, 31085140), (2, 15542570), (4, 7771285), (5, 6217028), (10, 3108514), (19, 1636060), (20, 1554257), (38, 818030), (76, 409015), (95, 327212), (179, 173660), (190, 163606), (358, 86830), (380, 81803), (457, 68020), (716, 43415), (895, 34732), (914, 34010), (1790, 17366), (1828, 17005), (2285, 13604), (3401, 9140), (3580, 8683), (4570, 6802)]