85291725

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 145518464

約数和(自身を除く): 60226739

約数列:

[1, 3, 5, 15, 25, 61, 75, 103, 181, 183, 305, 309, 515, 543, 905, 915, 1525, 1545, 2575, 2715, 4525, 4575, 6283, 7725, 11041, 13575, 18643, 18849, 31415, 33123, 55205, 55929, 93215, 94245, 157075, 165615, 276025, 279645, 466075, 471225, 828075, 1137223, 1398225, 3411669, 5686115, 17058345, 28430575, 85291725]

約数ペア:

[(1, 85291725), (3, 28430575), (5, 17058345), (15, 5686115), (25, 3411669), (61, 1398225), (75, 1137223), (103, 828075), (181, 471225), (183, 466075), (305, 279645), (309, 276025), (515, 165615), (543, 157075), (905, 94245), (915, 93215), (1525, 55929), (1545, 55205), (2575, 33123), (2715, 31415), (4525, 18849), (4575, 18643), (6283, 13575), (7725, 11041)]