81611816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71339}}^1$

素因数の和:71369

約数の個数: 32

約数和(自身を含む): 179776800

約数和(自身を除く): 98164984

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 71339, 142678, 285356, 570712, 784729, 927407, 1569458, 1854814, 3138916, 3709628, 6277832, 7419256, 10201477, 20402954, 40805908, 81611816]

約数ペア:

[(1, 81611816), (2, 40805908), (4, 20402954), (8, 10201477), (11, 7419256), (13, 6277832), (22, 3709628), (26, 3138916), (44, 1854814), (52, 1569458), (88, 927407), (104, 784729), (143, 570712), (286, 285356), (572, 142678), (1144, 71339)]