20801590

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{11621}}^1$

素因数の和:11807

約数の個数: 16

約数和(自身を含む): 37655280

約数和(自身を除く): 16853690

約数列:

[1, 2, 5, 10, 179, 358, 895, 1790, 11621, 23242, 58105, 116210, 2080159, 4160318, 10400795, 20801590]

約数ペア:

[(1, 20801590), (2, 10400795), (5, 4160318), (10, 2080159), (179, 116210), (358, 58105), (895, 23242), (1790, 11621)]