7901480

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{787}}^1$

素因数の和:1049

約数の個数: 32

約数和(自身を含む): 17871840

約数和(自身を除く): 9970360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 787, 1004, 1255, 1574, 2008, 2510, 3148, 3935, 5020, 6296, 7870, 10040, 15740, 31480, 197537, 395074, 790148, 987685, 1580296, 1975370, 3950740, 7901480]

約数ペア:

[(1, 7901480), (2, 3950740), (4, 1975370), (5, 1580296), (8, 987685), (10, 790148), (20, 395074), (40, 197537), (251, 31480), (502, 15740), (787, 10040), (1004, 7870), (1255, 6296), (1574, 5020), (2008, 3935), (2510, 3148)]