18188375

素因数分解:

$5^3\times {\mathrm{227}}^1\times {\mathrm{641}}^1$

素因数の和:883

約数の個数: 16

約数和(自身を含む): 22834656

約数和(自身を除く): 4646281

約数列:

[1, 5, 25, 125, 227, 641, 1135, 3205, 5675, 16025, 28375, 80125, 145507, 727535, 3637675, 18188375]

約数ペア:

[(1, 18188375), (5, 3637675), (25, 727535), (125, 145507), (227, 80125), (641, 28375), (1135, 16025), (3205, 5675)]