2805255

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 5447520

約数和(自身を除く): 2642265

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 193, 255, 285, 323, 579, 765, 855, 965, 969, 1615, 1737, 2895, 2907, 3281, 3667, 4845, 8685, 9843, 11001, 14535, 16405, 18335, 29529, 33003, 49215, 55005, 62339, 147645, 165015, 187017, 311695, 561051, 935085, 2805255]

約数ペア:

[(1, 2805255), (3, 935085), (5, 561051), (9, 311695), (15, 187017), (17, 165015), (19, 147645), (45, 62339), (51, 55005), (57, 49215), (85, 33003), (95, 29529), (153, 18335), (171, 16405), (193, 14535), (255, 11001), (285, 9843), (323, 8685), (579, 4845), (765, 3667), (855, 3281), (965, 2907), (969, 2895), (1615, 1737)]