20145684140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1\times {\mathrm{24473}}^1$

素因数の和:25082

約数の個数: 48

約数和(自身を含む): 42925438080

約数和(自身を除く): 22779753940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 521, 790, 1042, 1580, 2084, 2605, 5210, 10420, 24473, 41159, 48946, 82318, 97892, 122365, 164636, 205795, 244730, 411590, 489460, 823180, 1933367, 3866734, 7733468, 9666835, 12750433, 19333670, 25500866, 38667340, 51001732, 63752165, 127504330, 255008660, 1007284207, 2014568414, 4029136828, 5036421035, 10072842070, 20145684140]

約数ペア:

[(1, 20145684140), (2, 10072842070), (4, 5036421035), (5, 4029136828), (10, 2014568414), (20, 1007284207), (79, 255008660), (158, 127504330), (316, 63752165), (395, 51001732), (521, 38667340), (790, 25500866), (1042, 19333670), (1580, 12750433), (2084, 9666835), (2605, 7733468), (5210, 3866734), (10420, 1933367), (24473, 823180), (41159, 489460), (48946, 411590), (82318, 244730), (97892, 205795), (122365, 164636)]