640717008

素因数分解:

$2^4\times 3^1\times {\mathrm{13348271}}^1$

素因数の和:13348282

約数の個数: 20

約数和(自身を含む): 1655185728

約数和(自身を除く): 1014468720

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13348271, 26696542, 40044813, 53393084, 80089626, 106786168, 160179252, 213572336, 320358504, 640717008]

約数ペア:

[(1, 640717008), (2, 320358504), (3, 213572336), (4, 160179252), (6, 106786168), (8, 80089626), (12, 53393084), (16, 40044813), (24, 26696542), (48, 13348271)]