28677880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9311}}^1$

素因数の和:9340

約数の個数: 64

約数和(自身を含む): 80455680

約数和(自身を除く): 51777800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 9311, 18622, 37244, 46555, 65177, 74488, 93110, 102421, 130354, 186220, 204842, 260708, 325885, 372440, 409684, 512105, 521416, 651770, 716947, 819368, 1024210, 1303540, 1433894, 2048420, 2607080, 2867788, 3584735, 4096840, 5735576, 7169470, 14338940, 28677880]

約数ペア:

[(1, 28677880), (2, 14338940), (4, 7169470), (5, 5735576), (7, 4096840), (8, 3584735), (10, 2867788), (11, 2607080), (14, 2048420), (20, 1433894), (22, 1303540), (28, 1024210), (35, 819368), (40, 716947), (44, 651770), (55, 521416), (56, 512105), (70, 409684), (77, 372440), (88, 325885), (110, 260708), (140, 204842), (154, 186220), (220, 130354), (280, 102421), (308, 93110), (385, 74488), (440, 65177), (616, 46555), (770, 37244), (1540, 18622), (3080, 9311)]