25426840

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2417}}^1$

素因数の和:2691

約数の個数: 32

約数和(自身を含む): 57451680

約数和(自身を除く): 32024840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2417, 2630, 4834, 5260, 9668, 10520, 12085, 19336, 24170, 48340, 96680, 635671, 1271342, 2542684, 3178355, 5085368, 6356710, 12713420, 25426840]

約数ペア:

[(1, 25426840), (2, 12713420), (4, 6356710), (5, 5085368), (8, 3178355), (10, 2542684), (20, 1271342), (40, 635671), (263, 96680), (526, 48340), (1052, 24170), (1315, 19336), (2104, 12085), (2417, 10520), (2630, 9668), (4834, 5260)]