20158675

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 26060832

約数和(自身を除く): 5902157

約数列:

[1, 5, 25, 41, 71, 205, 277, 355, 1025, 1385, 1775, 2911, 6925, 11357, 14555, 19667, 56785, 72775, 98335, 283925, 491675, 806347, 4031735, 20158675]

約数ペア:

[(1, 20158675), (5, 4031735), (25, 806347), (41, 491675), (71, 283925), (205, 98335), (277, 72775), (355, 56785), (1025, 19667), (1385, 14555), (1775, 11357), (2911, 6925)]