1390140584

素因数分解:

$2^3\times 7^7\times {\mathrm{211}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 3055344000

約数和(自身を除く): 1665203416

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 211, 343, 392, 422, 686, 844, 1372, 1477, 1688, 2401, 2744, 2954, 4802, 5908, 9604, 10339, 11816, 16807, 19208, 20678, 33614, 41356, 67228, 72373, 82712, 117649, 134456, 144746, 235298, 289492, 470596, 506611, 578984, 823543, 941192, 1013222, 1647086, 2026444, 3294172, 3546277, 4052888, 6588344, 7092554, 14185108, 24823939, 28370216, 49647878, 99295756, 173767573, 198591512, 347535146, 695070292, 1390140584]

約数ペア:

[(1, 1390140584), (2, 695070292), (4, 347535146), (7, 198591512), (8, 173767573), (14, 99295756), (28, 49647878), (49, 28370216), (56, 24823939), (98, 14185108), (196, 7092554), (211, 6588344), (343, 4052888), (392, 3546277), (422, 3294172), (686, 2026444), (844, 1647086), (1372, 1013222), (1477, 941192), (1688, 823543), (2401, 578984), (2744, 506611), (2954, 470596), (4802, 289492), (5908, 235298), (9604, 144746), (10339, 134456), (11816, 117649), (16807, 82712), (19208, 72373), (20678, 67228), (33614, 41356)]