81324945

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 157248000

約数和(自身を除く): 75923055

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 149, 195, 311, 351, 447, 585, 745, 933, 1341, 1555, 1755, 1937, 2235, 2799, 4023, 4043, 4665, 5811, 6705, 8397, 9685, 12129, 13995, 17433, 20115, 20215, 29055, 36387, 41985, 46339, 52299, 60645, 87165, 109161, 139017, 181935, 231695, 261495, 417051, 545805, 602407, 695085, 1251153, 1807221, 2085255, 3012035, 5421663, 6255765, 9036105, 16264989, 27108315, 81324945]

約数ペア:

[(1, 81324945), (3, 27108315), (5, 16264989), (9, 9036105), (13, 6255765), (15, 5421663), (27, 3012035), (39, 2085255), (45, 1807221), (65, 1251153), (117, 695085), (135, 602407), (149, 545805), (195, 417051), (311, 261495), (351, 231695), (447, 181935), (585, 139017), (745, 109161), (933, 87165), (1341, 60645), (1555, 52299), (1755, 46339), (1937, 41985), (2235, 36387), (2799, 29055), (4023, 20215), (4043, 20115), (4665, 17433), (5811, 13995), (6705, 12129), (8397, 9685)]