20181367580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{615661}}^1$

素因数の和:615830

約数の個数: 48

約数和(自身を含む): 46544047200

約数和(自身を除く): 26362679620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 1490, 1639, 2980, 3278, 6556, 8195, 16390, 32780, 615661, 1231322, 2462644, 3078305, 6156610, 6772271, 12313220, 13544542, 27089084, 33861355, 67722710, 91733489, 135445420, 183466978, 366933956, 458667445, 917334890, 1009068379, 1834669780, 2018136758, 4036273516, 5045341895, 10090683790, 20181367580]

約数ペア:

[(1, 20181367580), (2, 10090683790), (4, 5045341895), (5, 4036273516), (10, 2018136758), (11, 1834669780), (20, 1009068379), (22, 917334890), (44, 458667445), (55, 366933956), (110, 183466978), (149, 135445420), (220, 91733489), (298, 67722710), (596, 33861355), (745, 27089084), (1490, 13544542), (1639, 12313220), (2980, 6772271), (3278, 6156610), (6556, 3078305), (8195, 2462644), (16390, 1231322), (32780, 615661)]