20681030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66713}}^1$

素因数の和:66751

約数の個数: 16

約数和(自身を含む): 38427264

約数和(自身を除く): 17746234

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 66713, 133426, 333565, 667130, 2068103, 4136206, 10340515, 20681030]

約数ペア:

[(1, 20681030), (2, 10340515), (5, 4136206), (10, 2068103), (31, 667130), (62, 333565), (155, 133426), (310, 66713)]