20165217745

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1\times {\mathrm{2711}}^1$

素因数の和:4081

約数の個数: 32

約数和(自身を含む): 25683204096

約数和(自身を除く): 5517986351

約数列:

[1, 5, 31, 37, 155, 185, 1147, 1297, 2711, 5735, 6485, 13555, 40207, 47989, 84041, 100307, 201035, 239945, 420205, 501535, 1487659, 3109517, 3516167, 7438295, 15547585, 17580835, 109001177, 130098179, 545005885, 650490895, 4033043549, 20165217745]

約数ペア:

[(1, 20165217745), (5, 4033043549), (31, 650490895), (37, 545005885), (155, 130098179), (185, 109001177), (1147, 17580835), (1297, 15547585), (2711, 7438295), (5735, 3516167), (6485, 3109517), (13555, 1487659), (40207, 501535), (47989, 420205), (84041, 239945), (100307, 201035)]