20847465972

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{881}}^1\times {\mathrm{28579}}^1$

素因数の和:29493

約数の個数: 72

約数和(自身を含む): 55053311040

約数和(自身を除く): 34205845068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828, 881, 1762, 2643, 3524, 5286, 7929, 10572, 15858, 20263, 28579, 31716, 40526, 57158, 60789, 81052, 85737, 114316, 121578, 171474, 182367, 243156, 257211, 342948, 364734, 514422, 657317, 729468, 1028844, 1314634, 1971951, 2629268, 3943902, 5915853, 7887804, 11831706, 23663412, 25178099, 50356198, 75534297, 100712396, 151068594, 226602891, 302137188, 453205782, 579096277, 906411564, 1158192554, 1737288831, 2316385108, 3474577662, 5211866493, 6949155324, 10423732986, 20847465972]

約数ペア:

[(1, 20847465972), (2, 10423732986), (3, 6949155324), (4, 5211866493), (6, 3474577662), (9, 2316385108), (12, 1737288831), (18, 1158192554), (23, 906411564), (36, 579096277), (46, 453205782), (69, 302137188), (92, 226602891), (138, 151068594), (207, 100712396), (276, 75534297), (414, 50356198), (828, 25178099), (881, 23663412), (1762, 11831706), (2643, 7887804), (3524, 5915853), (5286, 3943902), (7929, 2629268), (10572, 1971951), (15858, 1314634), (20263, 1028844), (28579, 729468), (31716, 657317), (40526, 514422), (57158, 364734), (60789, 342948), (81052, 257211), (85737, 243156), (114316, 182367), (121578, 171474)]