81354416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 196518672

約数和(自身を除く): 115164256

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 37, 44, 52, 62, 74, 88, 104, 124, 143, 148, 176, 208, 248, 286, 296, 341, 403, 407, 481, 496, 572, 592, 682, 806, 814, 961, 962, 1144, 1147, 1364, 1612, 1628, 1922, 1924, 2288, 2294, 2728, 3224, 3256, 3844, 3848, 4433, 4588, 5291, 5456, 6448, 6512, 7688, 7696, 8866, 9176, 10571, 10582, 12493, 12617, 14911, 15376, 17732, 18352, 21142, 21164, 24986, 25234, 29822, 35464, 35557, 42284, 42328, 49972, 50468, 59644, 70928, 71114, 84568, 84656, 99944, 100936, 119288, 137423, 142228, 164021, 169136, 199888, 201872, 238576, 274846, 284456, 328042, 391127, 462241, 549692, 568912, 656084, 782254, 924482, 1099384, 1312168, 1564508, 1848964, 2198768, 2624336, 3129016, 3697928, 5084651, 6258032, 7395856, 10169302, 20338604, 40677208, 81354416]

約数ペア:

[(1, 81354416), (2, 40677208), (4, 20338604), (8, 10169302), (11, 7395856), (13, 6258032), (16, 5084651), (22, 3697928), (26, 3129016), (31, 2624336), (37, 2198768), (44, 1848964), (52, 1564508), (62, 1312168), (74, 1099384), (88, 924482), (104, 782254), (124, 656084), (143, 568912), (148, 549692), (176, 462241), (208, 391127), (248, 328042), (286, 284456), (296, 274846), (341, 238576), (403, 201872), (407, 199888), (481, 169136), (496, 164021), (572, 142228), (592, 137423), (682, 119288), (806, 100936), (814, 99944), (961, 84656), (962, 84568), (1144, 71114), (1147, 70928), (1364, 59644), (1612, 50468), (1628, 49972), (1922, 42328), (1924, 42284), (2288, 35557), (2294, 35464), (2728, 29822), (3224, 25234), (3256, 24986), (3844, 21164), (3848, 21142), (4433, 18352), (4588, 17732), (5291, 15376), (5456, 14911), (6448, 12617), (6512, 12493), (7688, 10582), (7696, 10571), (8866, 9176)]