627080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 1439640

約数和(自身を除く): 812560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 257, 305, 488, 514, 610, 1028, 1220, 1285, 2056, 2440, 2570, 5140, 10280, 15677, 31354, 62708, 78385, 125416, 156770, 313540, 627080]

約数ペア:

[(1, 627080), (2, 313540), (4, 156770), (5, 125416), (8, 78385), (10, 62708), (20, 31354), (40, 15677), (61, 10280), (122, 5140), (244, 2570), (257, 2440), (305, 2056), (488, 1285), (514, 1220), (610, 1028)]