128901745

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2089}}^1$

素因数の和:2185

約数の個数: 32

約数和(自身を含む): 185391360

約数和(自身を除く): 56489615

約数列:

[1, 5, 7, 35, 41, 43, 205, 215, 287, 301, 1435, 1505, 1763, 2089, 8815, 10445, 12341, 14623, 61705, 73115, 85649, 89827, 428245, 449135, 599543, 628789, 2997715, 3143945, 3682907, 18414535, 25780349, 128901745]

約数ペア:

[(1, 128901745), (5, 25780349), (7, 18414535), (35, 3682907), (41, 3143945), (43, 2997715), (205, 628789), (215, 599543), (287, 449135), (301, 428245), (1435, 89827), (1505, 85649), (1763, 73115), (2089, 61705), (8815, 14623), (10445, 12341)]