2639785

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:288

約数の個数: 16

約数和(自身を含む): 3306240

約数和(自身を除く): 666455

約数列:

[1, 5, 41, 79, 163, 205, 395, 815, 3239, 6683, 12877, 16195, 33415, 64385, 527957, 2639785]

約数ペア:

[(1, 2639785), (5, 527957), (41, 64385), (79, 33415), (163, 16195), (205, 12877), (395, 6683), (815, 3239)]