20478135

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{937}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 34578432

約数和(自身を除く): 14100297

約数列:

[1, 3, 5, 15, 31, 47, 93, 141, 155, 235, 465, 705, 937, 1457, 2811, 4371, 4685, 7285, 14055, 21855, 29047, 44039, 87141, 132117, 145235, 220195, 435705, 660585, 1365209, 4095627, 6826045, 20478135]

約数ペア:

[(1, 20478135), (3, 6826045), (5, 4095627), (15, 1365209), (31, 660585), (47, 435705), (93, 220195), (141, 145235), (155, 132117), (235, 87141), (465, 44039), (705, 29047), (937, 21855), (1457, 14055), (2811, 7285), (4371, 4685)]