661832080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{90911}}^1$

素因数の和:90944

約数の個数: 80

約数和(自身を含む): 1893878784

約数和(自身を除く): 1232046704

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 90911, 181822, 363644, 454555, 636377, 727288, 909110, 1181843, 1272754, 1454576, 1818220, 2363686, 2545508, 3181885, 3636440, 4727372, 5091016, 5909215, 6363770, 7272880, 8272901, 9454744, 10182032, 11818430, 12727540, 16545802, 18909488, 23636860, 25455080, 33091604, 41364505, 47273720, 50910160, 66183208, 82729010, 94547440, 132366416, 165458020, 330916040, 661832080]

約数ペア:

[(1, 661832080), (2, 330916040), (4, 165458020), (5, 132366416), (7, 94547440), (8, 82729010), (10, 66183208), (13, 50910160), (14, 47273720), (16, 41364505), (20, 33091604), (26, 25455080), (28, 23636860), (35, 18909488), (40, 16545802), (52, 12727540), (56, 11818430), (65, 10182032), (70, 9454744), (80, 8272901), (91, 7272880), (104, 6363770), (112, 5909215), (130, 5091016), (140, 4727372), (182, 3636440), (208, 3181885), (260, 2545508), (280, 2363686), (364, 1818220), (455, 1454576), (520, 1272754), (560, 1181843), (728, 909110), (910, 727288), (1040, 636377), (1456, 454555), (1820, 363644), (3640, 181822), (7280, 90911)]