7867990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2087}}^1$

素因数の和:2136

約数の個数: 32

約数和(自身を含む): 15785280

約数和(自身を除く): 7917290

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 2087, 3770, 4174, 10435, 20870, 27131, 54262, 60523, 121046, 135655, 271310, 302615, 605230, 786799, 1573598, 3933995, 7867990]

約数ペア:

[(1, 7867990), (2, 3933995), (5, 1573598), (10, 786799), (13, 605230), (26, 302615), (29, 271310), (58, 135655), (65, 121046), (130, 60523), (145, 54262), (290, 27131), (377, 20870), (754, 10435), (1885, 4174), (2087, 3770)]