20455840216

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{42929}}^1$

素因数の和:43136

約数の個数: 64

約数和(自身を含む): 44839526400

約数和(自身を除く): 24383686184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 127, 134, 254, 268, 469, 508, 536, 889, 938, 1016, 1778, 1876, 3556, 3752, 7112, 8509, 17018, 34036, 42929, 59563, 68072, 85858, 119126, 171716, 238252, 300503, 343432, 476504, 601006, 1202012, 2404024, 2876243, 5451983, 5752486, 10903966, 11504972, 20133701, 21807932, 23009944, 38163881, 40267402, 43615864, 76327762, 80534804, 152655524, 161069608, 305311048, 365282861, 730565722, 1461131444, 2556980027, 2922262888, 5113960054, 10227920108, 20455840216]

約数ペア:

[(1, 20455840216), (2, 10227920108), (4, 5113960054), (7, 2922262888), (8, 2556980027), (14, 1461131444), (28, 730565722), (56, 365282861), (67, 305311048), (127, 161069608), (134, 152655524), (254, 80534804), (268, 76327762), (469, 43615864), (508, 40267402), (536, 38163881), (889, 23009944), (938, 21807932), (1016, 20133701), (1778, 11504972), (1876, 10903966), (3556, 5752486), (3752, 5451983), (7112, 2876243), (8509, 2404024), (17018, 1202012), (34036, 601006), (42929, 476504), (59563, 343432), (68072, 300503), (85858, 238252), (119126, 171716)]