20201101040

素因数分解:

$2^4\times 5^1\times {\mathrm{337}}^1\times {\mathrm{749299}}^1$

素因数の和:749649

約数の個数: 40

約数和(自身を含む): 47106992400

約数和(自身を除く): 26905891360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 337, 674, 1348, 1685, 2696, 3370, 5392, 6740, 13480, 26960, 749299, 1498598, 2997196, 3746495, 5994392, 7492990, 11988784, 14985980, 29971960, 59943920, 252513763, 505027526, 1010055052, 1262568815, 2020110104, 2525137630, 4040220208, 5050275260, 10100550520, 20201101040]

約数ペア:

[(1, 20201101040), (2, 10100550520), (4, 5050275260), (5, 4040220208), (8, 2525137630), (10, 2020110104), (16, 1262568815), (20, 1010055052), (40, 505027526), (80, 252513763), (337, 59943920), (674, 29971960), (1348, 14985980), (1685, 11988784), (2696, 7492990), (3370, 5994392), (5392, 3746495), (6740, 2997196), (13480, 1498598), (26960, 749299)]