121790720

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 321194160

約数和(自身を除く): 199403440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 64, 68, 80, 85, 116, 128, 136, 145, 160, 170, 193, 232, 256, 272, 290, 320, 340, 386, 464, 493, 544, 580, 640, 680, 772, 928, 965, 986, 1088, 1160, 1280, 1360, 1544, 1856, 1930, 1972, 2176, 2320, 2465, 2720, 3088, 3281, 3712, 3860, 3944, 4352, 4640, 4930, 5440, 5597, 6176, 6562, 7424, 7720, 7888, 9280, 9860, 10880, 11194, 12352, 13124, 15440, 15776, 16405, 18560, 19720, 21760, 22388, 24704, 26248, 27985, 30880, 31552, 32810, 37120, 39440, 44776, 49408, 52496, 55970, 61760, 63104, 65620, 78880, 89552, 95149, 104992, 111940, 123520, 126208, 131240, 157760, 179104, 190298, 209984, 223880, 247040, 262480, 315520, 358208, 380596, 419968, 447760, 475745, 524960, 631040, 716416, 761192, 839936, 895520, 951490, 1049920, 1432832, 1522384, 1791040, 1902980, 2099840, 3044768, 3582080, 3805960, 4199680, 6089536, 7164160, 7611920, 12179072, 15223840, 24358144, 30447680, 60895360, 121790720]

約数ペア:

[(1, 121790720), (2, 60895360), (4, 30447680), (5, 24358144), (8, 15223840), (10, 12179072), (16, 7611920), (17, 7164160), (20, 6089536), (29, 4199680), (32, 3805960), (34, 3582080), (40, 3044768), (58, 2099840), (64, 1902980), (68, 1791040), (80, 1522384), (85, 1432832), (116, 1049920), (128, 951490), (136, 895520), (145, 839936), (160, 761192), (170, 716416), (193, 631040), (232, 524960), (256, 475745), (272, 447760), (290, 419968), (320, 380596), (340, 358208), (386, 315520), (464, 262480), (493, 247040), (544, 223880), (580, 209984), (640, 190298), (680, 179104), (772, 157760), (928, 131240), (965, 126208), (986, 123520), (1088, 111940), (1160, 104992), (1280, 95149), (1360, 89552), (1544, 78880), (1856, 65620), (1930, 63104), (1972, 61760), (2176, 55970), (2320, 52496), (2465, 49408), (2720, 44776), (3088, 39440), (3281, 37120), (3712, 32810), (3860, 31552), (3944, 30880), (4352, 27985), (4640, 26248), (4930, 24704), (5440, 22388), (5597, 21760), (6176, 19720), (6562, 18560), (7424, 16405), (7720, 15776), (7888, 15440), (9280, 13124), (9860, 12352), (10880, 11194)]