20158825

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 25891200

約数和(自身を除く): 5732375

約数列:

[1, 5, 25, 59, 79, 173, 295, 395, 865, 1475, 1975, 4325, 4661, 10207, 13667, 23305, 51035, 68335, 116525, 255175, 341675, 806353, 4031765, 20158825]

約数ペア:

[(1, 20158825), (5, 4031765), (25, 806353), (59, 341675), (79, 255175), (173, 116525), (295, 68335), (395, 51035), (865, 23305), (1475, 13667), (1975, 10207), (4325, 4661)]