26311780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 60681600

約数和(自身を除く): 34369820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 398, 601, 796, 995, 1202, 1990, 2189, 2404, 3005, 3980, 4378, 6010, 6611, 8756, 10945, 12020, 13222, 21890, 26444, 33055, 43780, 66110, 119599, 132220, 239198, 478396, 597995, 1195990, 1315589, 2391980, 2631178, 5262356, 6577945, 13155890, 26311780]

約数ペア:

[(1, 26311780), (2, 13155890), (4, 6577945), (5, 5262356), (10, 2631178), (11, 2391980), (20, 1315589), (22, 1195990), (44, 597995), (55, 478396), (110, 239198), (199, 132220), (220, 119599), (398, 66110), (601, 43780), (796, 33055), (995, 26444), (1202, 21890), (1990, 13222), (2189, 12020), (2404, 10945), (3005, 8756), (3980, 6611), (4378, 6010)]