78864880

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10163}}^1$

素因数の和:10273

約数の個数: 40

約数和(自身を含む): 185269392

約数和(自身を除く): 106404512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 10163, 20326, 40652, 50815, 81304, 101630, 162608, 203260, 406520, 813040, 985811, 1971622, 3943244, 4929055, 7886488, 9858110, 15772976, 19716220, 39432440, 78864880]

約数ペア:

[(1, 78864880), (2, 39432440), (4, 19716220), (5, 15772976), (8, 9858110), (10, 7886488), (16, 4929055), (20, 3943244), (40, 1971622), (80, 985811), (97, 813040), (194, 406520), (388, 203260), (485, 162608), (776, 101630), (970, 81304), (1552, 50815), (1940, 40652), (3880, 20326), (7760, 10163)]