20286216

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{2027}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 55364400

約数和(自身を除く): 35078184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 2027, 2502, 3336, 4054, 5004, 6081, 8108, 10008, 12162, 16216, 18243, 24324, 36486, 48648, 72972, 145944, 281753, 563506, 845259, 1127012, 1690518, 2254024, 2535777, 3381036, 5071554, 6762072, 10143108, 20286216]

約数ペア:

[(1, 20286216), (2, 10143108), (3, 6762072), (4, 5071554), (6, 3381036), (8, 2535777), (9, 2254024), (12, 1690518), (18, 1127012), (24, 845259), (36, 563506), (72, 281753), (139, 145944), (278, 72972), (417, 48648), (556, 36486), (834, 24324), (1112, 18243), (1251, 16216), (1668, 12162), (2027, 10008), (2502, 8108), (3336, 6081), (4054, 5004)]