87140680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198047}}^1$

素因数の和:198069

約数の個数: 32

約数和(自身を含む): 213891840

約数和(自身を除く): 126751160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 198047, 396094, 792188, 990235, 1584376, 1980470, 2178517, 3960940, 4357034, 7921880, 8714068, 10892585, 17428136, 21785170, 43570340, 87140680]

約数ペア:

[(1, 87140680), (2, 43570340), (4, 21785170), (5, 17428136), (8, 10892585), (10, 8714068), (11, 7921880), (20, 4357034), (22, 3960940), (40, 2178517), (44, 1980470), (55, 1584376), (88, 990235), (110, 792188), (220, 396094), (440, 198047)]