15138925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 20088000

約数和(自身を除く): 4949075

約数列:

[1, 5, 17, 25, 85, 179, 199, 425, 895, 995, 3043, 3383, 4475, 4975, 15215, 16915, 35621, 76075, 84575, 178105, 605557, 890525, 3027785, 15138925]

約数ペア:

[(1, 15138925), (5, 3027785), (17, 890525), (25, 605557), (85, 178105), (179, 84575), (199, 76075), (425, 35621), (895, 16915), (995, 15215), (3043, 4975), (3383, 4475)]