127157020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{743}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 274982400

約数和(自身を除く): 147825380

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 199, 215, 398, 430, 743, 796, 860, 995, 1486, 1990, 2972, 3715, 3980, 7430, 8557, 14860, 17114, 31949, 34228, 42785, 63898, 85570, 127796, 147857, 159745, 171140, 295714, 319490, 591428, 638980, 739285, 1478570, 2957140, 6357851, 12715702, 25431404, 31789255, 63578510, 127157020]

約数ペア:

[(1, 127157020), (2, 63578510), (4, 31789255), (5, 25431404), (10, 12715702), (20, 6357851), (43, 2957140), (86, 1478570), (172, 739285), (199, 638980), (215, 591428), (398, 319490), (430, 295714), (743, 171140), (796, 159745), (860, 147857), (995, 127796), (1486, 85570), (1990, 63898), (2972, 42785), (3715, 34228), (3980, 31949), (7430, 17114), (8557, 14860)]