20123986168

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{138511}}^1$

素因数の和:138668

約数の個数: 64

約数和(自身を含む): 44678430720

約数和(自身を除く): 24554444552

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 127, 143, 254, 286, 508, 572, 1016, 1144, 1397, 1651, 2794, 3302, 5588, 6604, 11176, 13208, 18161, 36322, 72644, 138511, 145288, 277022, 554044, 1108088, 1523621, 1800643, 3047242, 3601286, 6094484, 7202572, 12188968, 14405144, 17590897, 19807073, 35181794, 39614146, 70363588, 79228292, 140727176, 158456584, 193499867, 228681661, 386999734, 457363322, 773999468, 914726644, 1547998936, 1829453288, 2515498271, 5030996542, 10061993084, 20123986168]

約数ペア:

[(1, 20123986168), (2, 10061993084), (4, 5030996542), (8, 2515498271), (11, 1829453288), (13, 1547998936), (22, 914726644), (26, 773999468), (44, 457363322), (52, 386999734), (88, 228681661), (104, 193499867), (127, 158456584), (143, 140727176), (254, 79228292), (286, 70363588), (508, 39614146), (572, 35181794), (1016, 19807073), (1144, 17590897), (1397, 14405144), (1651, 12188968), (2794, 7202572), (3302, 6094484), (5588, 3601286), (6604, 3047242), (11176, 1800643), (13208, 1523621), (18161, 1108088), (36322, 554044), (72644, 277022), (138511, 145288)]