86988880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2411}}^1$

素因数の和:2476

約数の個数: 80

約数和(自身を含む): 226110528

約数和(自身を除く): 139121648

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 820, 880, 902, 1640, 1804, 2255, 2411, 3280, 3608, 4510, 4822, 7216, 9020, 9644, 12055, 18040, 19288, 24110, 26521, 36080, 38576, 48220, 53042, 96440, 98851, 106084, 132605, 192880, 197702, 212168, 265210, 395404, 424336, 494255, 530420, 790808, 988510, 1060840, 1087361, 1581616, 1977020, 2121680, 2174722, 3954040, 4349444, 5436805, 7908080, 8698888, 10873610, 17397776, 21747220, 43494440, 86988880]

約数ペア:

[(1, 86988880), (2, 43494440), (4, 21747220), (5, 17397776), (8, 10873610), (10, 8698888), (11, 7908080), (16, 5436805), (20, 4349444), (22, 3954040), (40, 2174722), (41, 2121680), (44, 1977020), (55, 1581616), (80, 1087361), (82, 1060840), (88, 988510), (110, 790808), (164, 530420), (176, 494255), (205, 424336), (220, 395404), (328, 265210), (410, 212168), (440, 197702), (451, 192880), (656, 132605), (820, 106084), (880, 98851), (902, 96440), (1640, 53042), (1804, 48220), (2255, 38576), (2411, 36080), (3280, 26521), (3608, 24110), (4510, 19288), (4822, 18040), (7216, 12055), (9020, 9644)]