27980715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{38069}}^1$

素因数の和:38091

約数の個数: 24

約数和(自身を含む): 52079760

約数和(自身を除く): 24099045

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 38069, 114207, 190345, 266483, 571035, 799449, 1332415, 1865381, 3997245, 5596143, 9326905, 27980715]

約数ペア:

[(1, 27980715), (3, 9326905), (5, 5596143), (7, 3997245), (15, 1865381), (21, 1332415), (35, 799449), (49, 571035), (105, 266483), (147, 190345), (245, 114207), (735, 38069)]