25404680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90731}}^1$

素因数の和:90749

約数の個数: 32

約数和(自身を含む): 65327040

約数和(自身を除く): 39922360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90731, 181462, 362924, 453655, 635117, 725848, 907310, 1270234, 1814620, 2540468, 3175585, 3629240, 5080936, 6351170, 12702340, 25404680]

約数ペア:

[(1, 25404680), (2, 12702340), (4, 6351170), (5, 5080936), (7, 3629240), (8, 3175585), (10, 2540468), (14, 1814620), (20, 1270234), (28, 907310), (35, 725848), (40, 635117), (56, 453655), (70, 362924), (140, 181462), (280, 90731)]