127737140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{155777}}^1$

素因数の和:155827

約数の個数: 24

約数和(自身を含む): 274792392

約数和(自身を除く): 147055252

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 155777, 311554, 623108, 778885, 1557770, 3115540, 6386857, 12773714, 25547428, 31934285, 63868570, 127737140]

約数ペア:

[(1, 127737140), (2, 63868570), (4, 31934285), (5, 25547428), (10, 12773714), (20, 6386857), (41, 3115540), (82, 1557770), (164, 778885), (205, 623108), (410, 311554), (820, 155777)]