19109075

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 24644256

約数和(自身を除く): 5535181

約数列:

[1, 5, 25, 41, 103, 181, 205, 515, 905, 1025, 2575, 4223, 4525, 7421, 18643, 21115, 37105, 93215, 105575, 185525, 466075, 764363, 3821815, 19109075]

約数ペア:

[(1, 19109075), (5, 3821815), (25, 764363), (41, 466075), (103, 185525), (181, 105575), (205, 93215), (515, 37105), (905, 21115), (1025, 18643), (2575, 7421), (4223, 4525)]