65393360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19937}}^1$

素因数の和:19991

約数の個数: 40

約数和(自身を含む): 155755656

約数和(自身を除く): 90362296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 19937, 39874, 79748, 99685, 159496, 199370, 318992, 398740, 797480, 817417, 1594960, 1634834, 3269668, 4087085, 6539336, 8174170, 13078672, 16348340, 32696680, 65393360]

約数ペア:

[(1, 65393360), (2, 32696680), (4, 16348340), (5, 13078672), (8, 8174170), (10, 6539336), (16, 4087085), (20, 3269668), (40, 1634834), (41, 1594960), (80, 817417), (82, 797480), (164, 398740), (205, 318992), (328, 199370), (410, 159496), (656, 99685), (820, 79748), (1640, 39874), (3280, 19937)]