25804280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1787}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 61310520

約数和(自身を除く): 35506240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1787, 1805, 2888, 3574, 3610, 7148, 7220, 8935, 14296, 14440, 17870, 33953, 35740, 67906, 71480, 135812, 169765, 271624, 339530, 645107, 679060, 1290214, 1358120, 2580428, 3225535, 5160856, 6451070, 12902140, 25804280]

約数ペア:

[(1, 25804280), (2, 12902140), (4, 6451070), (5, 5160856), (8, 3225535), (10, 2580428), (19, 1358120), (20, 1290214), (38, 679060), (40, 645107), (76, 339530), (95, 271624), (152, 169765), (190, 135812), (361, 71480), (380, 67906), (722, 35740), (760, 33953), (1444, 17870), (1787, 14440), (1805, 14296), (2888, 8935), (3574, 7220), (3610, 7148)]