79821820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{911}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 181254528

約数和(自身を除く): 101432708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 337, 674, 911, 1348, 1685, 1822, 3370, 3644, 4381, 4555, 6740, 8762, 9110, 11843, 17524, 18220, 21905, 23686, 43810, 47372, 59215, 87620, 118430, 236860, 307007, 614014, 1228028, 1535035, 3070070, 3991091, 6140140, 7982182, 15964364, 19955455, 39910910, 79821820]

約数ペア:

[(1, 79821820), (2, 39910910), (4, 19955455), (5, 15964364), (10, 7982182), (13, 6140140), (20, 3991091), (26, 3070070), (52, 1535035), (65, 1228028), (130, 614014), (260, 307007), (337, 236860), (674, 118430), (911, 87620), (1348, 59215), (1685, 47372), (1822, 43810), (3370, 23686), (3644, 21905), (4381, 18220), (4555, 17524), (6740, 11843), (8762, 9110)]