2017820905

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{19801}}^1$

素因数の和:20124

約数の個数: 16

約数和(自身を含む): 2459408400

約数和(自身を除く): 441587495

約数列:

[1, 5, 89, 229, 445, 1145, 19801, 20381, 99005, 101905, 1762289, 4534429, 8811445, 22672145, 403564181, 2017820905]

約数ペア:

[(1, 2017820905), (5, 403564181), (89, 22672145), (229, 8811445), (445, 4534429), (1145, 1762289), (19801, 101905), (20381, 99005)]