1282421720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1\times {\mathrm{1301}}^1$

素因数の和:2628

約数の個数: 64

約数和(自身を含む): 3041992800

約数和(自身を除く): 1759571080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1297, 1301, 2594, 2602, 5188, 5204, 6485, 6505, 10376, 10408, 12970, 13010, 24643, 24719, 25940, 26020, 49286, 49438, 51880, 52040, 98572, 98876, 123215, 123595, 197144, 197752, 246430, 247190, 492860, 494380, 985720, 988760, 1687397, 3374794, 6749588, 8436985, 13499176, 16873970, 32060543, 33747940, 64121086, 67495880, 128242172, 160302715, 256484344, 320605430, 641210860, 1282421720]

約数ペア:

[(1, 1282421720), (2, 641210860), (4, 320605430), (5, 256484344), (8, 160302715), (10, 128242172), (19, 67495880), (20, 64121086), (38, 33747940), (40, 32060543), (76, 16873970), (95, 13499176), (152, 8436985), (190, 6749588), (380, 3374794), (760, 1687397), (1297, 988760), (1301, 985720), (2594, 494380), (2602, 492860), (5188, 247190), (5204, 246430), (6485, 197752), (6505, 197144), (10376, 123595), (10408, 123215), (12970, 98876), (13010, 98572), (24643, 52040), (24719, 51880), (25940, 49438), (26020, 49286)]