39720405

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 65654784

約数和(自身を除く): 25934379

約数列:

[1, 3, 5, 15, 47, 103, 141, 235, 309, 515, 547, 705, 1545, 1641, 2735, 4841, 8205, 14523, 24205, 25709, 56341, 72615, 77127, 128545, 169023, 281705, 385635, 845115, 2648027, 7944081, 13240135, 39720405]

約数ペア:

[(1, 39720405), (3, 13240135), (5, 7944081), (15, 2648027), (47, 845115), (103, 385635), (141, 281705), (235, 169023), (309, 128545), (515, 77127), (547, 72615), (705, 56341), (1545, 25709), (1641, 24205), (2735, 14523), (4841, 8205)]