65637880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 128

約数和(自身を含む): 186831360

約数和(自身を除く): 121193480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 101, 110, 140, 154, 202, 211, 220, 280, 308, 385, 404, 422, 440, 505, 616, 707, 770, 808, 844, 1010, 1055, 1111, 1414, 1477, 1540, 1688, 2020, 2110, 2222, 2321, 2828, 2954, 3080, 3535, 4040, 4220, 4444, 4642, 5555, 5656, 5908, 7070, 7385, 7777, 8440, 8888, 9284, 11110, 11605, 11816, 14140, 14770, 15554, 16247, 18568, 21311, 22220, 23210, 28280, 29540, 31108, 32494, 38885, 42622, 44440, 46420, 59080, 62216, 64988, 77770, 81235, 85244, 92840, 106555, 129976, 149177, 155540, 162470, 170488, 213110, 234421, 298354, 311080, 324940, 426220, 468842, 596708, 649880, 745885, 852440, 937684, 1172105, 1193416, 1491770, 1640947, 1875368, 2344210, 2983540, 3281894, 4688420, 5967080, 6563788, 8204735, 9376840, 13127576, 16409470, 32818940, 65637880]

約数ペア:

[(1, 65637880), (2, 32818940), (4, 16409470), (5, 13127576), (7, 9376840), (8, 8204735), (10, 6563788), (11, 5967080), (14, 4688420), (20, 3281894), (22, 2983540), (28, 2344210), (35, 1875368), (40, 1640947), (44, 1491770), (55, 1193416), (56, 1172105), (70, 937684), (77, 852440), (88, 745885), (101, 649880), (110, 596708), (140, 468842), (154, 426220), (202, 324940), (211, 311080), (220, 298354), (280, 234421), (308, 213110), (385, 170488), (404, 162470), (422, 155540), (440, 149177), (505, 129976), (616, 106555), (707, 92840), (770, 85244), (808, 81235), (844, 77770), (1010, 64988), (1055, 62216), (1111, 59080), (1414, 46420), (1477, 44440), (1540, 42622), (1688, 38885), (2020, 32494), (2110, 31108), (2222, 29540), (2321, 28280), (2828, 23210), (2954, 22220), (3080, 21311), (3535, 18568), (4040, 16247), (4220, 15554), (4444, 14770), (4642, 14140), (5555, 11816), (5656, 11605), (5908, 11110), (7070, 9284), (7385, 8888), (7777, 8440)]