661796205

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{128629}}^1$

素因数の和:128658

約数の個数: 32

約数和(自身を含む): 1234848000

約数和(自身を除く): 573051795

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 5145, 128629, 385887, 643145, 900403, 1929435, 2701209, 4502015, 6302821, 13506045, 18908463, 31514105, 44119747, 94542315, 132359241, 220598735, 661796205]

約数ペア:

[(1, 661796205), (3, 220598735), (5, 132359241), (7, 94542315), (15, 44119747), (21, 31514105), (35, 18908463), (49, 13506045), (105, 6302821), (147, 4502015), (245, 2701209), (343, 1929435), (735, 900403), (1029, 643145), (1715, 385887), (5145, 128629)]