80812640

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:280

約数の個数: 96

約数和(自身を含む): 199148544

約数和(自身を除く): 118335904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 97, 127, 160, 164, 194, 205, 254, 328, 388, 410, 485, 508, 635, 656, 776, 820, 970, 1016, 1270, 1312, 1552, 1640, 1940, 2032, 2540, 3104, 3280, 3880, 3977, 4064, 5080, 5207, 6560, 7760, 7954, 10160, 10414, 12319, 15520, 15908, 19885, 20320, 20828, 24638, 26035, 31816, 39770, 41656, 49276, 52070, 61595, 63632, 79540, 83312, 98552, 104140, 123190, 127264, 159080, 166624, 197104, 208280, 246380, 318160, 394208, 416560, 492760, 505079, 636320, 833120, 985520, 1010158, 1971040, 2020316, 2525395, 4040632, 5050790, 8081264, 10101580, 16162528, 20203160, 40406320, 80812640]

約数ペア:

[(1, 80812640), (2, 40406320), (4, 20203160), (5, 16162528), (8, 10101580), (10, 8081264), (16, 5050790), (20, 4040632), (32, 2525395), (40, 2020316), (41, 1971040), (80, 1010158), (82, 985520), (97, 833120), (127, 636320), (160, 505079), (164, 492760), (194, 416560), (205, 394208), (254, 318160), (328, 246380), (388, 208280), (410, 197104), (485, 166624), (508, 159080), (635, 127264), (656, 123190), (776, 104140), (820, 98552), (970, 83312), (1016, 79540), (1270, 63632), (1312, 61595), (1552, 52070), (1640, 49276), (1940, 41656), (2032, 39770), (2540, 31816), (3104, 26035), (3280, 24638), (3880, 20828), (3977, 20320), (4064, 19885), (5080, 15908), (5207, 15520), (6560, 12319), (7760, 10414), (7954, 10160)]