1281522680

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1\times {\mathrm{1123}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 2952253440

約数和(自身を除く): 1670730760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 607, 940, 1123, 1214, 1880, 2246, 2428, 3035, 4492, 4856, 5615, 6070, 8984, 11230, 12140, 22460, 24280, 28529, 44920, 52781, 57058, 105562, 114116, 142645, 211124, 228232, 263905, 285290, 422248, 527810, 570580, 681661, 1055620, 1141160, 1363322, 2111240, 2726644, 3408305, 5453288, 6816610, 13633220, 27266440, 32038067, 64076134, 128152268, 160190335, 256304536, 320380670, 640761340, 1281522680]

約数ペア:

[(1, 1281522680), (2, 640761340), (4, 320380670), (5, 256304536), (8, 160190335), (10, 128152268), (20, 64076134), (40, 32038067), (47, 27266440), (94, 13633220), (188, 6816610), (235, 5453288), (376, 3408305), (470, 2726644), (607, 2111240), (940, 1363322), (1123, 1141160), (1214, 1055620), (1880, 681661), (2246, 570580), (2428, 527810), (3035, 422248), (4492, 285290), (4856, 263905), (5615, 228232), (6070, 211124), (8984, 142645), (11230, 114116), (12140, 105562), (22460, 57058), (24280, 52781), (28529, 44920)]