20172875

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{2273}}^1$

素因数の和:2359

約数の個数: 16

約数和(自身を含む): 25541568

約数和(自身を除く): 5368693

約数列:

[1, 5, 25, 71, 125, 355, 1775, 2273, 8875, 11365, 56825, 161383, 284125, 806915, 4034575, 20172875]

約数ペア:

[(1, 20172875), (5, 4034575), (25, 806915), (71, 284125), (125, 161383), (355, 56825), (1775, 11365), (2273, 8875)]