25691985

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 51575040

約数和(自身を除く): 25883055

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 73, 79, 81, 99, 135, 165, 219, 237, 297, 365, 395, 405, 495, 657, 711, 803, 869, 891, 1095, 1185, 1485, 1971, 2133, 2409, 2607, 3285, 3555, 4015, 4345, 4455, 5767, 5913, 6399, 7227, 7821, 9855, 10665, 12045, 13035, 17301, 21681, 23463, 28835, 29565, 31995, 36135, 39105, 51903, 63437, 65043, 70389, 86505, 108405, 117315, 155709, 190311, 259515, 317185, 325215, 351945, 467127, 570933, 778545, 951555, 1712799, 2335635, 2854665, 5138397, 8563995, 25691985]

約数ペア:

[(1, 25691985), (3, 8563995), (5, 5138397), (9, 2854665), (11, 2335635), (15, 1712799), (27, 951555), (33, 778545), (45, 570933), (55, 467127), (73, 351945), (79, 325215), (81, 317185), (99, 259515), (135, 190311), (165, 155709), (219, 117315), (237, 108405), (297, 86505), (365, 70389), (395, 65043), (405, 63437), (495, 51903), (657, 39105), (711, 36135), (803, 31995), (869, 29565), (891, 28835), (1095, 23463), (1185, 21681), (1485, 17301), (1971, 13035), (2133, 12045), (2409, 10665), (2607, 9855), (3285, 7821), (3555, 7227), (4015, 6399), (4345, 5913), (4455, 5767)]