81136120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{463}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 197608320

約数和(自身を除く): 116472200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 337, 463, 520, 674, 926, 1348, 1685, 1852, 2315, 2696, 3370, 3704, 4381, 4630, 6019, 6740, 8762, 9260, 12038, 13480, 17524, 18520, 21905, 24076, 30095, 35048, 43810, 48152, 60190, 87620, 120380, 156031, 175240, 240760, 312062, 624124, 780155, 1248248, 1560310, 2028403, 3120620, 4056806, 6241240, 8113612, 10142015, 16227224, 20284030, 40568060, 81136120]

約数ペア:

[(1, 81136120), (2, 40568060), (4, 20284030), (5, 16227224), (8, 10142015), (10, 8113612), (13, 6241240), (20, 4056806), (26, 3120620), (40, 2028403), (52, 1560310), (65, 1248248), (104, 780155), (130, 624124), (260, 312062), (337, 240760), (463, 175240), (520, 156031), (674, 120380), (926, 87620), (1348, 60190), (1685, 48152), (1852, 43810), (2315, 35048), (2696, 30095), (3370, 24076), (3704, 21905), (4381, 18520), (4630, 17524), (6019, 13480), (6740, 12038), (8762, 9260)]