67642640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{337}}^1$

素因数の和:556

約数の個数: 80

約数和(自身を含む): 170749488

約数和(自身を除く): 103106848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 193, 208, 260, 337, 386, 520, 674, 772, 965, 1040, 1348, 1544, 1685, 1930, 2509, 2696, 3088, 3370, 3860, 4381, 5018, 5392, 6740, 7720, 8762, 10036, 12545, 13480, 15440, 17524, 20072, 21905, 25090, 26960, 35048, 40144, 43810, 50180, 65041, 70096, 87620, 100360, 130082, 175240, 200720, 260164, 325205, 350480, 520328, 650410, 845533, 1040656, 1300820, 1691066, 2601640, 3382132, 4227665, 5203280, 6764264, 8455330, 13528528, 16910660, 33821320, 67642640]

約数ペア:

[(1, 67642640), (2, 33821320), (4, 16910660), (5, 13528528), (8, 8455330), (10, 6764264), (13, 5203280), (16, 4227665), (20, 3382132), (26, 2601640), (40, 1691066), (52, 1300820), (65, 1040656), (80, 845533), (104, 650410), (130, 520328), (193, 350480), (208, 325205), (260, 260164), (337, 200720), (386, 175240), (520, 130082), (674, 100360), (772, 87620), (965, 70096), (1040, 65041), (1348, 50180), (1544, 43810), (1685, 40144), (1930, 35048), (2509, 26960), (2696, 25090), (3088, 21905), (3370, 20072), (3860, 17524), (4381, 15440), (5018, 13480), (5392, 12545), (6740, 10036), (7720, 8762)]