20655142784

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{25537}}^1$

素因数の和:25711

約数の個数: 64

約数和(自身を含む): 42198991200

約数和(自身を除く): 21543848416

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 89, 128, 142, 178, 284, 356, 568, 712, 1136, 1424, 2272, 2848, 4544, 5696, 6319, 9088, 11392, 12638, 25276, 25537, 50552, 51074, 101104, 102148, 202208, 204296, 404416, 408592, 808832, 817184, 1634368, 1813127, 2272793, 3268736, 3626254, 4545586, 7252508, 9091172, 14505016, 18182344, 29010032, 36364688, 58020064, 72729376, 116040128, 145458752, 161368303, 232080256, 290917504, 322736606, 645473212, 1290946424, 2581892848, 5163785696, 10327571392, 20655142784]

約数ペア:

[(1, 20655142784), (2, 10327571392), (4, 5163785696), (8, 2581892848), (16, 1290946424), (32, 645473212), (64, 322736606), (71, 290917504), (89, 232080256), (128, 161368303), (142, 145458752), (178, 116040128), (284, 72729376), (356, 58020064), (568, 36364688), (712, 29010032), (1136, 18182344), (1424, 14505016), (2272, 9091172), (2848, 7252508), (4544, 4545586), (5696, 3626254), (6319, 3268736), (9088, 2272793), (11392, 1813127), (12638, 1634368), (25276, 817184), (25537, 808832), (50552, 408592), (51074, 404416), (101104, 204296), (102148, 202208)]