2171925940

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1\times {\mathrm{887}}^1$

素因数の和:1728

約数の個数: 48

約数和(自身を含む): 4597254144

約数和(自身を除く): 2425328204

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 641, 764, 887, 955, 1282, 1774, 1910, 2564, 3205, 3548, 3820, 4435, 6410, 8870, 12820, 17740, 122431, 169417, 244862, 338834, 489724, 568567, 612155, 677668, 847085, 1137134, 1224310, 1694170, 2274268, 2448620, 2842835, 3388340, 5685670, 11371340, 108596297, 217192594, 434385188, 542981485, 1085962970, 2171925940]

約数ペア:

[(1, 2171925940), (2, 1085962970), (4, 542981485), (5, 434385188), (10, 217192594), (20, 108596297), (191, 11371340), (382, 5685670), (641, 3388340), (764, 2842835), (887, 2448620), (955, 2274268), (1282, 1694170), (1774, 1224310), (1910, 1137134), (2564, 847085), (3205, 677668), (3548, 612155), (3820, 568567), (4435, 489724), (6410, 338834), (8870, 244862), (12820, 169417), (17740, 122431)]