31138782020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{721139}}^1$

素因数の和:721292

約数の個数: 48

約数和(自身を含む): 69783275520

約数和(自身を除く): 38644493500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 127, 170, 254, 340, 508, 635, 1270, 2159, 2540, 4318, 8636, 10795, 21590, 43180, 721139, 1442278, 2884556, 3605695, 7211390, 12259363, 14422780, 24518726, 49037452, 61296815, 91584653, 122593630, 183169306, 245187260, 366338612, 457923265, 915846530, 1556939101, 1831693060, 3113878202, 6227756404, 7784695505, 15569391010, 31138782020]

約数ペア:

[(1, 31138782020), (2, 15569391010), (4, 7784695505), (5, 6227756404), (10, 3113878202), (17, 1831693060), (20, 1556939101), (34, 915846530), (68, 457923265), (85, 366338612), (127, 245187260), (170, 183169306), (254, 122593630), (340, 91584653), (508, 61296815), (635, 49037452), (1270, 24518726), (2159, 14422780), (2540, 12259363), (4318, 7211390), (8636, 3605695), (10795, 2884556), (21590, 1442278), (43180, 721139)]