81706680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:514

約数の個数: 192

約数和(自身を含む): 296524800

約数和(自身を除く): 214818120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 47, 55, 60, 66, 72, 88, 90, 94, 99, 110, 120, 132, 141, 165, 180, 188, 198, 220, 235, 264, 282, 330, 360, 376, 396, 423, 439, 440, 470, 495, 517, 564, 660, 705, 792, 846, 878, 940, 990, 1034, 1128, 1317, 1320, 1410, 1551, 1692, 1756, 1880, 1980, 2068, 2115, 2195, 2585, 2634, 2820, 3102, 3384, 3512, 3951, 3960, 4136, 4230, 4390, 4653, 4829, 5170, 5268, 5640, 6204, 6585, 7755, 7902, 8460, 8780, 9306, 9658, 10340, 10536, 12408, 13170, 14487, 15510, 15804, 16920, 17560, 18612, 19316, 19755, 20633, 20680, 23265, 24145, 26340, 28974, 31020, 31608, 37224, 38632, 39510, 41266, 43461, 46530, 48290, 52680, 57948, 61899, 62040, 72435, 79020, 82532, 86922, 93060, 96580, 103165, 115896, 123798, 144870, 158040, 165064, 173844, 185697, 186120, 193160, 206330, 217305, 226963, 247596, 289740, 309495, 347688, 371394, 412660, 434610, 453926, 495192, 579480, 618990, 680889, 742788, 825320, 869220, 907852, 928485, 1134815, 1237980, 1361778, 1485576, 1738440, 1815704, 1856970, 2042667, 2269630, 2475960, 2723556, 3404445, 3713940, 4085334, 4539260, 5447112, 6808890, 7427880, 8170668, 9078520, 10213335, 13617780, 16341336, 20426670, 27235560, 40853340, 81706680]

約数ペア:

[(1, 81706680), (2, 40853340), (3, 27235560), (4, 20426670), (5, 16341336), (6, 13617780), (8, 10213335), (9, 9078520), (10, 8170668), (11, 7427880), (12, 6808890), (15, 5447112), (18, 4539260), (20, 4085334), (22, 3713940), (24, 3404445), (30, 2723556), (33, 2475960), (36, 2269630), (40, 2042667), (44, 1856970), (45, 1815704), (47, 1738440), (55, 1485576), (60, 1361778), (66, 1237980), (72, 1134815), (88, 928485), (90, 907852), (94, 869220), (99, 825320), (110, 742788), (120, 680889), (132, 618990), (141, 579480), (165, 495192), (180, 453926), (188, 434610), (198, 412660), (220, 371394), (235, 347688), (264, 309495), (282, 289740), (330, 247596), (360, 226963), (376, 217305), (396, 206330), (423, 193160), (439, 186120), (440, 185697), (470, 173844), (495, 165064), (517, 158040), (564, 144870), (660, 123798), (705, 115896), (792, 103165), (846, 96580), (878, 93060), (940, 86922), (990, 82532), (1034, 79020), (1128, 72435), (1317, 62040), (1320, 61899), (1410, 57948), (1551, 52680), (1692, 48290), (1756, 46530), (1880, 43461), (1980, 41266), (2068, 39510), (2115, 38632), (2195, 37224), (2585, 31608), (2634, 31020), (2820, 28974), (3102, 26340), (3384, 24145), (3512, 23265), (3951, 20680), (3960, 20633), (4136, 19755), (4230, 19316), (4390, 18612), (4653, 17560), (4829, 16920), (5170, 15804), (5268, 15510), (5640, 14487), (6204, 13170), (6585, 12408), (7755, 10536), (7902, 10340), (8460, 9658), (8780, 9306)]