13219520

素因数分解:

$2^6\times 5^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:505

約数の個数: 56

約数和(自身を含む): 31851600

約数和(自身を除く): 18632080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 160, 218, 320, 379, 436, 545, 758, 872, 1090, 1516, 1744, 1895, 2180, 3032, 3488, 3790, 4360, 6064, 6976, 7580, 8720, 12128, 15160, 17440, 24256, 30320, 34880, 41311, 60640, 82622, 121280, 165244, 206555, 330488, 413110, 660976, 826220, 1321952, 1652440, 2643904, 3304880, 6609760, 13219520]

約数ペア:

[(1, 13219520), (2, 6609760), (4, 3304880), (5, 2643904), (8, 1652440), (10, 1321952), (16, 826220), (20, 660976), (32, 413110), (40, 330488), (64, 206555), (80, 165244), (109, 121280), (160, 82622), (218, 60640), (320, 41311), (379, 34880), (436, 30320), (545, 24256), (758, 17440), (872, 15160), (1090, 12128), (1516, 8720), (1744, 7580), (1895, 6976), (2180, 6064), (3032, 4360), (3488, 3790)]