25186220

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3079}}^1$

素因数の和:3497

約数の個数: 24

約数和(自身を含む): 53037600

約数和(自身を除く): 27851380

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 3079, 4090, 6158, 8180, 12316, 15395, 30790, 61580, 1259311, 2518622, 5037244, 6296555, 12593110, 25186220]

約数ペア:

[(1, 25186220), (2, 12593110), (4, 6296555), (5, 5037244), (10, 2518622), (20, 1259311), (409, 61580), (818, 30790), (1636, 15395), (2045, 12316), (3079, 8180), (4090, 6158)]