25405640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48857}}^1$

素因数の和:48881

約数の個数: 32

約数和(自身を含む): 61561080

約数和(自身を除く): 36155440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 48857, 97714, 195428, 244285, 390856, 488570, 635141, 977140, 1270282, 1954280, 2540564, 3175705, 5081128, 6351410, 12702820, 25405640]

約数ペア:

[(1, 25405640), (2, 12702820), (4, 6351410), (5, 5081128), (8, 3175705), (10, 2540564), (13, 1954280), (20, 1270282), (26, 977140), (40, 635141), (52, 488570), (65, 390856), (104, 244285), (130, 195428), (260, 97714), (520, 48857)]