2642000

素因数分解:

$2^4\times 5^3\times {\mathrm{1321}}^1$

素因数の和:1344

約数の個数: 40

約数和(自身を含む): 6393192

約数和(自身を除く): 3751192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1321, 2000, 2642, 5284, 6605, 10568, 13210, 21136, 26420, 33025, 52840, 66050, 105680, 132100, 165125, 264200, 330250, 528400, 660500, 1321000, 2642000]

約数ペア:

[(1, 2642000), (2, 1321000), (4, 660500), (5, 528400), (8, 330250), (10, 264200), (16, 165125), (20, 132100), (25, 105680), (40, 66050), (50, 52840), (80, 33025), (100, 26420), (125, 21136), (200, 13210), (250, 10568), (400, 6605), (500, 5284), (1000, 2642), (1321, 2000)]