25681580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31319}}^1$

素因数の和:31369

約数の個数: 24

約数和(自身を含む): 55248480

約数和(自身を除く): 29566900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 31319, 62638, 125276, 156595, 313190, 626380, 1284079, 2568158, 5136316, 6420395, 12840790, 25681580]

約数ペア:

[(1, 25681580), (2, 12840790), (4, 6420395), (5, 5136316), (10, 2568158), (20, 1284079), (41, 626380), (82, 313190), (164, 156595), (205, 125276), (410, 62638), (820, 31319)]