127799120

素因数分解:

$2^4\times 5^1\times {\mathrm{1597489}}^1$

素因数の和:1597502

約数の個数: 20

約数和(自身を含む): 297133140

約数和(自身を除く): 169334020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1597489, 3194978, 6389956, 7987445, 12779912, 15974890, 25559824, 31949780, 63899560, 127799120]

約数ペア:

[(1, 127799120), (2, 63899560), (4, 31949780), (5, 25559824), (8, 15974890), (10, 12779912), (16, 7987445), (20, 6389956), (40, 3194978), (80, 1597489)]