64493360

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8311}}^1$

素因数の和:8421

約数の個数: 40

約数和(自身を含む): 151511136

約数和(自身を除く): 87017776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 8311, 16622, 33244, 41555, 66488, 83110, 132976, 166220, 332440, 664880, 806167, 1612334, 3224668, 4030835, 6449336, 8061670, 12898672, 16123340, 32246680, 64493360]

約数ペア:

[(1, 64493360), (2, 32246680), (4, 16123340), (5, 12898672), (8, 8061670), (10, 6449336), (16, 4030835), (20, 3224668), (40, 1612334), (80, 806167), (97, 664880), (194, 332440), (388, 166220), (485, 132976), (776, 83110), (970, 66488), (1552, 41555), (1940, 33244), (3880, 16622), (7760, 8311)]