79989796

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{20809}}^1$

素因数の和:20875

約数の個数: 18

約数和(自身を含む): 144650310

約数和(自身を除く): 64660514

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 20809, 41618, 83236, 645079, 1290158, 2580316, 19997449, 39994898, 79989796]

約数ペア:

[(1, 79989796), (2, 39994898), (4, 19997449), (31, 2580316), (62, 1290158), (124, 645079), (961, 83236), (1922, 41618), (3844, 20809)]