64213360

素因数分解:

$2^4\times 5^1\times {\mathrm{802667}}^1$

素因数の和:802680

約数の個数: 20

約数和(自身を含む): 149296248

約数和(自身を除く): 85082888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 802667, 1605334, 3210668, 4013335, 6421336, 8026670, 12842672, 16053340, 32106680, 64213360]

約数ペア:

[(1, 64213360), (2, 32106680), (4, 16053340), (5, 12842672), (8, 8026670), (10, 6421336), (16, 4013335), (20, 3210668), (40, 1605334), (80, 802667)]