1391120

素因数分解:

$2^4\times 5^1\times {\mathrm{17389}}^1$

素因数の和:17402

約数の個数: 20

約数和(自身を含む): 3234540

約数和(自身を除く): 1843420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17389, 34778, 69556, 86945, 139112, 173890, 278224, 347780, 695560, 1391120]

約数ペア:

[(1, 1391120), (2, 695560), (4, 347780), (5, 278224), (8, 173890), (10, 139112), (16, 86945), (20, 69556), (40, 34778), (80, 17389)]