15181580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 33116160

約数和(自身を除く): 17934580

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 127, 139, 172, 215, 254, 278, 430, 508, 556, 635, 695, 860, 1270, 1390, 2540, 2780, 5461, 5977, 10922, 11954, 17653, 21844, 23908, 27305, 29885, 35306, 54610, 59770, 70612, 88265, 109220, 119540, 176530, 353060, 759079, 1518158, 3036316, 3795395, 7590790, 15181580]

約数ペア:

[(1, 15181580), (2, 7590790), (4, 3795395), (5, 3036316), (10, 1518158), (20, 759079), (43, 353060), (86, 176530), (127, 119540), (139, 109220), (172, 88265), (215, 70612), (254, 59770), (278, 54610), (430, 35306), (508, 29885), (556, 27305), (635, 23908), (695, 21844), (860, 17653), (1270, 11954), (1390, 10922), (2540, 5977), (2780, 5461)]