51003280

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5849}}^1$

素因数の和:5971

約数の個数: 40

約数和(自身を含む): 119691000

約数和(自身を除く): 68687720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 5849, 8720, 11698, 23396, 29245, 46792, 58490, 93584, 116980, 233960, 467920, 637541, 1275082, 2550164, 3187705, 5100328, 6375410, 10200656, 12750820, 25501640, 51003280]

約数ペア:

[(1, 51003280), (2, 25501640), (4, 12750820), (5, 10200656), (8, 6375410), (10, 5100328), (16, 3187705), (20, 2550164), (40, 1275082), (80, 637541), (109, 467920), (218, 233960), (436, 116980), (545, 93584), (872, 58490), (1090, 46792), (1744, 29245), (2180, 23396), (4360, 11698), (5849, 8720)]