20201665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4127}}^1$

素因数の和:4232

約数の個数: 16

約数和(自身を含む): 26749440

約数和(自身を除く): 6547775

約数列:

[1, 5, 11, 55, 89, 445, 979, 4127, 4895, 20635, 45397, 226985, 367303, 1836515, 4040333, 20201665]

約数ペア:

[(1, 20201665), (5, 4040333), (11, 1836515), (55, 367303), (89, 226985), (445, 45397), (979, 20635), (4127, 4895)]