64793360

素因数分解:

$2^4\times 5^1\times {\mathrm{809917}}^1$

素因数の和:809930

約数の個数: 20

約数和(自身を含む): 150644748

約数和(自身を除く): 85851388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809917, 1619834, 3239668, 4049585, 6479336, 8099170, 12958672, 16198340, 32396680, 64793360]

約数ペア:

[(1, 64793360), (2, 32396680), (4, 16198340), (5, 12958672), (8, 8099170), (10, 6479336), (16, 4049585), (20, 3239668), (40, 1619834), (80, 809917)]