28641672

素因数分解:

$2^3\times 3^2\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2210

約数の個数: 48

約数和(自身を含む): 78000000

約数和(自身を除く): 49358328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 199, 398, 597, 796, 1194, 1592, 1791, 1999, 2388, 3582, 3998, 4776, 5997, 7164, 7996, 11994, 14328, 15992, 17991, 23988, 35982, 47976, 71964, 143928, 397801, 795602, 1193403, 1591204, 2386806, 3182408, 3580209, 4773612, 7160418, 9547224, 14320836, 28641672]

約数ペア:

[(1, 28641672), (2, 14320836), (3, 9547224), (4, 7160418), (6, 4773612), (8, 3580209), (9, 3182408), (12, 2386806), (18, 1591204), (24, 1193403), (36, 795602), (72, 397801), (199, 143928), (398, 71964), (597, 47976), (796, 35982), (1194, 23988), (1592, 17991), (1791, 15992), (1999, 14328), (2388, 11994), (3582, 7996), (3998, 7164), (4776, 5997)]