81455760

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{877}}^1$

素因数の和:942

約数の個数: 160

約数和(自身を含む): 287422080

約数和(自身を除く): 205966320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 43, 45, 48, 54, 60, 72, 80, 86, 90, 108, 120, 129, 135, 144, 172, 180, 215, 216, 240, 258, 270, 344, 360, 387, 430, 432, 516, 540, 645, 688, 720, 774, 860, 877, 1032, 1080, 1161, 1290, 1548, 1720, 1754, 1935, 2064, 2160, 2322, 2580, 2631, 3096, 3440, 3508, 3870, 4385, 4644, 5160, 5262, 5805, 6192, 7016, 7740, 7893, 8770, 9288, 10320, 10524, 11610, 13155, 14032, 15480, 15786, 17540, 18576, 21048, 23220, 23679, 26310, 30960, 31572, 35080, 37711, 39465, 42096, 46440, 47358, 52620, 63144, 70160, 75422, 78930, 92880, 94716, 105240, 113133, 118395, 126288, 150844, 157860, 188555, 189432, 210480, 226266, 236790, 301688, 315720, 339399, 377110, 378864, 452532, 473580, 565665, 603376, 631440, 678798, 754220, 905064, 947160, 1018197, 1131330, 1357596, 1508440, 1696995, 1810128, 1894320, 2036394, 2262660, 2715192, 3016880, 3393990, 4072788, 4525320, 5090985, 5430384, 6787980, 8145576, 9050640, 10181970, 13575960, 16291152, 20363940, 27151920, 40727880, 81455760]

約数ペア:

[(1, 81455760), (2, 40727880), (3, 27151920), (4, 20363940), (5, 16291152), (6, 13575960), (8, 10181970), (9, 9050640), (10, 8145576), (12, 6787980), (15, 5430384), (16, 5090985), (18, 4525320), (20, 4072788), (24, 3393990), (27, 3016880), (30, 2715192), (36, 2262660), (40, 2036394), (43, 1894320), (45, 1810128), (48, 1696995), (54, 1508440), (60, 1357596), (72, 1131330), (80, 1018197), (86, 947160), (90, 905064), (108, 754220), (120, 678798), (129, 631440), (135, 603376), (144, 565665), (172, 473580), (180, 452532), (215, 378864), (216, 377110), (240, 339399), (258, 315720), (270, 301688), (344, 236790), (360, 226266), (387, 210480), (430, 189432), (432, 188555), (516, 157860), (540, 150844), (645, 126288), (688, 118395), (720, 113133), (774, 105240), (860, 94716), (877, 92880), (1032, 78930), (1080, 75422), (1161, 70160), (1290, 63144), (1548, 52620), (1720, 47358), (1754, 46440), (1935, 42096), (2064, 39465), (2160, 37711), (2322, 35080), (2580, 31572), (2631, 30960), (3096, 26310), (3440, 23679), (3508, 23220), (3870, 21048), (4385, 18576), (4644, 17540), (5160, 15786), (5262, 15480), (5805, 14032), (6192, 13155), (7016, 11610), (7740, 10524), (7893, 10320), (8770, 9288)]