18629425

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:393

約数の個数: 24

約数和(自身を含む): 24373440

約数和(自身を除く): 5744015

約数列:

[1, 5, 23, 25, 115, 179, 181, 575, 895, 905, 4117, 4163, 4475, 4525, 20585, 20815, 32399, 102925, 104075, 161995, 745177, 809975, 3725885, 18629425]

約数ペア:

[(1, 18629425), (5, 3725885), (23, 809975), (25, 745177), (115, 161995), (179, 104075), (181, 102925), (575, 32399), (895, 20815), (905, 20585), (4117, 4525), (4163, 4475)]