20338604

素因数分解:

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

素因数の和:127

約数の個数: 72

約数和(自身を含む): 44375184

約数和(自身を除く): 24036580

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 37, 44, 52, 62, 74, 124, 143, 148, 286, 341, 403, 407, 481, 572, 682, 806, 814, 961, 962, 1147, 1364, 1612, 1628, 1922, 1924, 2294, 3844, 4433, 4588, 5291, 8866, 10571, 10582, 12493, 12617, 14911, 17732, 21142, 21164, 24986, 25234, 29822, 35557, 42284, 49972, 50468, 59644, 71114, 137423, 142228, 164021, 274846, 328042, 391127, 462241, 549692, 656084, 782254, 924482, 1564508, 1848964, 5084651, 10169302, 20338604]

約数ペア:

[(1, 20338604), (2, 10169302), (4, 5084651), (11, 1848964), (13, 1564508), (22, 924482), (26, 782254), (31, 656084), (37, 549692), (44, 462241), (52, 391127), (62, 328042), (74, 274846), (124, 164021), (143, 142228), (148, 137423), (286, 71114), (341, 59644), (403, 50468), (407, 49972), (481, 42284), (572, 35557), (682, 29822), (806, 25234), (814, 24986), (961, 21164), (962, 21142), (1147, 17732), (1364, 14911), (1612, 12617), (1628, 12493), (1922, 10582), (1924, 10571), (2294, 8866), (3844, 5291), (4433, 4588)]