240255

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 439920

約数和(自身を除く): 199665

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 281, 285, 843, 855, 1405, 2529, 4215, 5339, 12645, 16017, 26695, 48051, 80085, 240255]

約数ペア:

[(1, 240255), (3, 80085), (5, 48051), (9, 26695), (15, 16017), (19, 12645), (45, 5339), (57, 4215), (95, 2529), (171, 1405), (281, 855), (285, 843)]