87147140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{106277}}^1$

素因数の和:106327

約数の個数: 24

約数和(自身を含む): 187474392

約数和(自身を除く): 100327252

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 106277, 212554, 425108, 531385, 1062770, 2125540, 4357357, 8714714, 17429428, 21786785, 43573570, 87147140]

約数ペア:

[(1, 87147140), (2, 43573570), (4, 21786785), (5, 17429428), (10, 8714714), (20, 4357357), (41, 2125540), (82, 1062770), (164, 531385), (205, 425108), (410, 212554), (820, 106277)]