20268545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{919}}^1$

素因数の和:1336

約数の個数: 16

約数和(自身を含む): 26628480

約数和(自身を除く): 6359935

約数列:

[1, 5, 11, 55, 401, 919, 2005, 4411, 4595, 10109, 22055, 50545, 368519, 1842595, 4053709, 20268545]

約数ペア:

[(1, 20268545), (5, 4053709), (11, 1842595), (55, 368519), (401, 50545), (919, 22055), (2005, 10109), (4411, 4595)]