257129814736

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20629799}}^1$

素因数の和:20629867

約数の個数: 40

約数和(自身を含む): 537199992000

約数和(自身を除く): 280070177264

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 3116, 6232, 12464, 20629799, 41259598, 82519196, 165038392, 330076784, 391966181, 783932362, 845821759, 1567864724, 1691643518, 3135729448, 3383287036, 6271458896, 6766574072, 13533148144, 16070613421, 32141226842, 64282453684, 128564907368, 257129814736]

約数ペア:

[(1, 257129814736), (2, 128564907368), (4, 64282453684), (8, 32141226842), (16, 16070613421), (19, 13533148144), (38, 6766574072), (41, 6271458896), (76, 3383287036), (82, 3135729448), (152, 1691643518), (164, 1567864724), (304, 845821759), (328, 783932362), (656, 391966181), (779, 330076784), (1558, 165038392), (3116, 82519196), (6232, 41259598), (12464, 20629799)]