28406295

素因数分解:

$3^4\times 5^1\times {\mathrm{70139}}^1$

素因数の和:70156

約数の個数: 20

約数和(自身を含む): 50921640

約数和(自身を除く): 22515345

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70139, 210417, 350695, 631251, 1052085, 1893753, 3156255, 5681259, 9468765, 28406295]

約数ペア:

[(1, 28406295), (3, 9468765), (5, 5681259), (9, 3156255), (15, 1893753), (27, 1052085), (45, 631251), (81, 350695), (135, 210417), (405, 70139)]