80012680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4229}}^1$

素因数の和:4294

約数の個数: 64

約数和(自身を含む): 201009600

約数和(自身を除く): 120996920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4229, 4730, 8458, 9460, 16916, 18920, 21145, 33832, 42290, 46519, 84580, 93038, 169160, 181847, 186076, 232595, 363694, 372152, 465190, 727388, 909235, 930380, 1454776, 1818470, 1860760, 2000317, 3636940, 4000634, 7273880, 8001268, 10001585, 16002536, 20003170, 40006340, 80012680]

約数ペア:

[(1, 80012680), (2, 40006340), (4, 20003170), (5, 16002536), (8, 10001585), (10, 8001268), (11, 7273880), (20, 4000634), (22, 3636940), (40, 2000317), (43, 1860760), (44, 1818470), (55, 1454776), (86, 930380), (88, 909235), (110, 727388), (172, 465190), (215, 372152), (220, 363694), (344, 232595), (430, 186076), (440, 181847), (473, 169160), (860, 93038), (946, 84580), (1720, 46519), (1892, 42290), (2365, 33832), (3784, 21145), (4229, 18920), (4730, 16916), (8458, 9460)]