40406320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 97993728

約数和(自身を除く): 57587408

約数列:

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

約数ペア:

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