66777920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:400

約数の個数: 112

約数和(自身を含む): 176881536

約数和(自身を除く): 110103616

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 61, 64, 80, 88, 110, 122, 160, 176, 220, 244, 305, 311, 320, 352, 440, 488, 610, 622, 671, 704, 880, 976, 1220, 1244, 1342, 1555, 1760, 1952, 2440, 2488, 2684, 3110, 3355, 3421, 3520, 3904, 4880, 4976, 5368, 6220, 6710, 6842, 9760, 9952, 10736, 12440, 13420, 13684, 17105, 18971, 19520, 19904, 21472, 24880, 26840, 27368, 34210, 37942, 42944, 49760, 53680, 54736, 68420, 75884, 94855, 99520, 107360, 109472, 136840, 151768, 189710, 208681, 214720, 218944, 273680, 303536, 379420, 417362, 547360, 607072, 758840, 834724, 1043405, 1094720, 1214144, 1517680, 1669448, 2086810, 3035360, 3338896, 4173620, 6070720, 6677792, 8347240, 13355584, 16694480, 33388960, 66777920]

約数ペア:

[(1, 66777920), (2, 33388960), (4, 16694480), (5, 13355584), (8, 8347240), (10, 6677792), (11, 6070720), (16, 4173620), (20, 3338896), (22, 3035360), (32, 2086810), (40, 1669448), (44, 1517680), (55, 1214144), (61, 1094720), (64, 1043405), (80, 834724), (88, 758840), (110, 607072), (122, 547360), (160, 417362), (176, 379420), (220, 303536), (244, 273680), (305, 218944), (311, 214720), (320, 208681), (352, 189710), (440, 151768), (488, 136840), (610, 109472), (622, 107360), (671, 99520), (704, 94855), (880, 75884), (976, 68420), (1220, 54736), (1244, 53680), (1342, 49760), (1555, 42944), (1760, 37942), (1952, 34210), (2440, 27368), (2488, 26840), (2684, 24880), (3110, 21472), (3355, 19904), (3421, 19520), (3520, 18971), (3904, 17105), (4880, 13684), (4976, 13420), (5368, 12440), (6220, 10736), (6710, 9952), (6842, 9760)]