1279647540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{27031}}^1$

素因数の和:27309

約数の個数: 72

約数和(自身を含む): 3896500608

約数和(自身を除く): 2616853068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 789, 1052, 1315, 1578, 2367, 2630, 3156, 3945, 4734, 5260, 7890, 9468, 11835, 15780, 23670, 27031, 47340, 54062, 81093, 108124, 135155, 162186, 243279, 270310, 324372, 405465, 486558, 540620, 810930, 973116, 1216395, 1621860, 2432790, 4865580, 7109153, 14218306, 21327459, 28436612, 35545765, 42654918, 63982377, 71091530, 85309836, 106637295, 127964754, 142183060, 213274590, 255929508, 319911885, 426549180, 639823770, 1279647540]

約数ペア:

[(1, 1279647540), (2, 639823770), (3, 426549180), (4, 319911885), (5, 255929508), (6, 213274590), (9, 142183060), (10, 127964754), (12, 106637295), (15, 85309836), (18, 71091530), (20, 63982377), (30, 42654918), (36, 35545765), (45, 28436612), (60, 21327459), (90, 14218306), (180, 7109153), (263, 4865580), (526, 2432790), (789, 1621860), (1052, 1216395), (1315, 973116), (1578, 810930), (2367, 540620), (2630, 486558), (3156, 405465), (3945, 324372), (4734, 270310), (5260, 243279), (7890, 162186), (9468, 135155), (11835, 108124), (15780, 81093), (23670, 54062), (27031, 47340)]