28271960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17239}}^1$

素因数の和:17291

約数の個数: 32

約数和(自身を含む): 65167200

約数和(自身を除く): 36895240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17239, 34478, 68956, 86195, 137912, 172390, 344780, 689560, 706799, 1413598, 2827196, 3533995, 5654392, 7067990, 14135980, 28271960]

約数ペア:

[(1, 28271960), (2, 14135980), (4, 7067990), (5, 5654392), (8, 3533995), (10, 2827196), (20, 1413598), (40, 706799), (41, 689560), (82, 344780), (164, 172390), (205, 137912), (328, 86195), (410, 68956), (820, 34478), (1640, 17239)]