1390240

素因数分解:

$2^5\times 5^1\times {\mathrm{8689}}^1$

素因数の和:8704

約数の個数: 24

約数和(自身を含む): 3284820

約数和(自身を除く): 1894580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 8689, 17378, 34756, 43445, 69512, 86890, 139024, 173780, 278048, 347560, 695120, 1390240]

約数ペア:

[(1, 1390240), (2, 695120), (4, 347560), (5, 278048), (8, 173780), (10, 139024), (16, 86890), (20, 69512), (32, 43445), (40, 34756), (80, 17378), (160, 8689)]