20512157880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{857}}^1\times {\mathrm{199457}}^1$

素因数の和:200328

約数の個数: 64

約数和(自身を含む): 61608587040

約数和(自身を除く): 41096429160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 857, 1714, 2571, 3428, 4285, 5142, 6856, 8570, 10284, 12855, 17140, 20568, 25710, 34280, 51420, 102840, 199457, 398914, 598371, 797828, 997285, 1196742, 1595656, 1994570, 2393484, 2991855, 3989140, 4786968, 5983710, 7978280, 11967420, 23934840, 170934649, 341869298, 512803947, 683738596, 854673245, 1025607894, 1367477192, 1709346490, 2051215788, 2564019735, 3418692980, 4102431576, 5128039470, 6837385960, 10256078940, 20512157880]

約数ペア:

[(1, 20512157880), (2, 10256078940), (3, 6837385960), (4, 5128039470), (5, 4102431576), (6, 3418692980), (8, 2564019735), (10, 2051215788), (12, 1709346490), (15, 1367477192), (20, 1025607894), (24, 854673245), (30, 683738596), (40, 512803947), (60, 341869298), (120, 170934649), (857, 23934840), (1714, 11967420), (2571, 7978280), (3428, 5983710), (4285, 4786968), (5142, 3989140), (6856, 2991855), (8570, 2393484), (10284, 1994570), (12855, 1595656), (17140, 1196742), (20568, 997285), (25710, 797828), (34280, 598371), (51420, 398914), (102840, 199457)]