25764280

素因数分解:

$2^3\times 5^1\times {\mathrm{644107}}^1$

素因数の和:644118

約数の個数: 16

約数和(自身を含む): 57969720

約数和(自身を除く): 32205440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 644107, 1288214, 2576428, 3220535, 5152856, 6441070, 12882140, 25764280]

約数ペア:

[(1, 25764280), (2, 12882140), (4, 6441070), (5, 5152856), (8, 3220535), (10, 2576428), (20, 1288214), (40, 644107)]