19903655

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1229}}^1$

素因数の和:1354

約数の個数: 16

約数和(自身を含む): 24796800

約数和(自身を除く): 4893145

約数列:

[1, 5, 41, 79, 205, 395, 1229, 3239, 6145, 16195, 50389, 97091, 251945, 485455, 3980731, 19903655]

約数ペア:

[(1, 19903655), (5, 3980731), (41, 485455), (79, 251945), (205, 97091), (395, 50389), (1229, 16195), (3239, 6145)]