31325475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 55710720

約数和(自身を除く): 24385245

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 79, 85, 237, 255, 311, 395, 425, 933, 1185, 1275, 1343, 1555, 1975, 4029, 4665, 5287, 5925, 6715, 7775, 15861, 20145, 23325, 24569, 26435, 33575, 73707, 79305, 100725, 122845, 132175, 368535, 396525, 417673, 614225, 1253019, 1842675, 2088365, 6265095, 10441825, 31325475]

約数ペア:

[(1, 31325475), (3, 10441825), (5, 6265095), (15, 2088365), (17, 1842675), (25, 1253019), (51, 614225), (75, 417673), (79, 396525), (85, 368535), (237, 132175), (255, 122845), (311, 100725), (395, 79305), (425, 73707), (933, 33575), (1185, 26435), (1275, 24569), (1343, 23325), (1555, 20145), (1975, 15861), (4029, 7775), (4665, 6715), (5287, 5925)]