20656265

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 29998080

約数和(自身を除く): 9341815

約数列:

[1, 5, 7, 29, 35, 47, 145, 203, 235, 329, 433, 1015, 1363, 1645, 2165, 3031, 6815, 9541, 12557, 15155, 20351, 47705, 62785, 87899, 101755, 142457, 439495, 590179, 712285, 2950895, 4131253, 20656265]

約数ペア:

[(1, 20656265), (5, 4131253), (7, 2950895), (29, 712285), (35, 590179), (47, 439495), (145, 142457), (203, 101755), (235, 87899), (329, 62785), (433, 47705), (1015, 20351), (1363, 15155), (1645, 12557), (2165, 9541), (3031, 6815)]