260039440

素因数分解:

$2^4\times 5^1\times {\mathrm{3250493}}^1$

素因数の和:3250506

約数の個数: 20

約数和(自身を含む): 604591884

約数和(自身を除く): 344552444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3250493, 6500986, 13001972, 16252465, 26003944, 32504930, 52007888, 65009860, 130019720, 260039440]

約数ペア:

[(1, 260039440), (2, 130019720), (4, 65009860), (5, 52007888), (8, 32504930), (10, 26003944), (16, 16252465), (20, 13001972), (40, 6500986), (80, 3250493)]