126991120

素因数分解:

$2^4\times 5^1\times {\mathrm{1587389}}^1$

素因数の和:1587402

約数の個数: 20

約数和(自身を含む): 295254540

約数和(自身を除く): 168263420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1587389, 3174778, 6349556, 7936945, 12699112, 15873890, 25398224, 31747780, 63495560, 126991120]

約数ペア:

[(1, 126991120), (2, 63495560), (4, 31747780), (5, 25398224), (8, 15873890), (10, 12699112), (16, 7936945), (20, 6349556), (40, 3174778), (80, 1587389)]