129411785

素因数分解:

$5^1\times {\mathrm{41}}^2\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 161893080

約数和(自身を除く): 32481295

約数列:

[1, 5, 41, 89, 173, 205, 445, 865, 1681, 3649, 7093, 8405, 15397, 18245, 35465, 76985, 149609, 290813, 631277, 748045, 1454065, 3156385, 25882357, 129411785]

約数ペア:

[(1, 129411785), (5, 25882357), (41, 3156385), (89, 1454065), (173, 748045), (205, 631277), (445, 290813), (865, 149609), (1681, 76985), (3649, 35465), (7093, 18245), (8405, 15397)]