1901800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 4558860

約数和(自身を除く): 2657060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 257, 296, 370, 514, 740, 925, 1028, 1285, 1480, 1850, 2056, 2570, 3700, 5140, 6425, 7400, 9509, 10280, 12850, 19018, 25700, 38036, 47545, 51400, 76072, 95090, 190180, 237725, 380360, 475450, 950900, 1901800]

約数ペア:

[(1, 1901800), (2, 950900), (4, 475450), (5, 380360), (8, 237725), (10, 190180), (20, 95090), (25, 76072), (37, 51400), (40, 47545), (50, 38036), (74, 25700), (100, 19018), (148, 12850), (185, 10280), (200, 9509), (257, 7400), (296, 6425), (370, 5140), (514, 3700), (740, 2570), (925, 2056), (1028, 1850), (1285, 1480)]