645795

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 1138176

約数和(自身を除く): 492381

約数列:

[1, 3, 5, 9, 15, 45, 113, 127, 339, 381, 565, 635, 1017, 1143, 1695, 1905, 5085, 5715, 14351, 43053, 71755, 129159, 215265, 645795]

約数ペア:

[(1, 645795), (3, 215265), (5, 129159), (9, 71755), (15, 43053), (45, 14351), (113, 5715), (127, 5085), (339, 1905), (381, 1695), (565, 1143), (635, 1017)]