1520336875

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{599}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 1979366400

約数和(自身を除く): 459029525

約数列:

[1, 5, 25, 31, 125, 131, 155, 599, 625, 655, 775, 2995, 3275, 3875, 4061, 14975, 16375, 18569, 19375, 20305, 74875, 78469, 81875, 92845, 101525, 374375, 392345, 464225, 507625, 1961725, 2321125, 2432539, 2538125, 9808625, 11605625, 12162695, 49043125, 60813475, 304067375, 1520336875]

約数ペア:

[(1, 1520336875), (5, 304067375), (25, 60813475), (31, 49043125), (125, 12162695), (131, 11605625), (155, 9808625), (599, 2538125), (625, 2432539), (655, 2321125), (775, 1961725), (2995, 507625), (3275, 464225), (3875, 392345), (4061, 374375), (14975, 101525), (16375, 92845), (18569, 81875), (19375, 78469), (20305, 74875)]