254702480

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29209}}^1$

素因数の和:29331

約数の個数: 40

約数和(自身を含む): 597636600

約数和(自身を除く): 342934120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 29209, 58418, 116836, 146045, 233672, 292090, 467344, 584180, 1168360, 2336720, 3183781, 6367562, 12735124, 15918905, 25470248, 31837810, 50940496, 63675620, 127351240, 254702480]

約数ペア:

[(1, 254702480), (2, 127351240), (4, 63675620), (5, 50940496), (8, 31837810), (10, 25470248), (16, 15918905), (20, 12735124), (40, 6367562), (80, 3183781), (109, 2336720), (218, 1168360), (436, 584180), (545, 467344), (872, 292090), (1090, 233672), (1744, 146045), (2180, 116836), (4360, 58418), (8720, 29209)]