128942640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 459613440

約数和(自身を除く): 330670800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 53, 60, 62, 72, 80, 90, 93, 106, 109, 120, 124, 144, 155, 159, 180, 186, 212, 218, 240, 248, 265, 279, 310, 318, 327, 360, 372, 424, 436, 465, 477, 496, 530, 545, 558, 620, 636, 654, 720, 744, 795, 848, 872, 930, 954, 981, 1060, 1090, 1116, 1240, 1272, 1308, 1395, 1488, 1590, 1635, 1643, 1744, 1860, 1908, 1962, 2120, 2180, 2232, 2385, 2480, 2544, 2616, 2790, 3180, 3270, 3286, 3379, 3720, 3816, 3924, 4240, 4360, 4464, 4770, 4905, 4929, 5232, 5580, 5777, 6360, 6540, 6572, 6758, 7440, 7632, 7848, 8215, 8720, 9540, 9810, 9858, 10137, 11160, 11554, 12720, 13080, 13144, 13516, 14787, 15696, 16430, 16895, 17331, 19080, 19620, 19716, 20274, 22320, 23108, 24645, 26160, 26288, 27032, 28885, 29574, 30411, 32860, 33790, 34662, 38160, 39240, 39432, 40548, 46216, 49290, 50685, 51993, 54064, 57770, 59148, 60822, 65720, 67580, 69324, 73935, 78480, 78864, 81096, 86655, 92432, 98580, 101370, 103986, 115540, 118296, 121644, 131440, 135160, 138648, 147870, 152055, 162192, 173310, 179087, 197160, 202740, 207972, 231080, 236592, 243288, 259965, 270320, 277296, 295740, 304110, 346620, 358174, 394320, 405480, 415944, 462160, 486576, 519930, 537261, 591480, 608220, 693240, 716348, 810960, 831888, 895435, 1039860, 1074522, 1182960, 1216440, 1386480, 1432696, 1611783, 1790870, 2079720, 2149044, 2432880, 2686305, 2865392, 3223566, 3581740, 4159440, 4298088, 5372610, 6447132, 7163480, 8058915, 8596176, 10745220, 12894264, 14326960, 16117830, 21490440, 25788528, 32235660, 42980880, 64471320, 128942640]

約数ペア:

[(1, 128942640), (2, 64471320), (3, 42980880), (4, 32235660), (5, 25788528), (6, 21490440), (8, 16117830), (9, 14326960), (10, 12894264), (12, 10745220), (15, 8596176), (16, 8058915), (18, 7163480), (20, 6447132), (24, 5372610), (30, 4298088), (31, 4159440), (36, 3581740), (40, 3223566), (45, 2865392), (48, 2686305), (53, 2432880), (60, 2149044), (62, 2079720), (72, 1790870), (80, 1611783), (90, 1432696), (93, 1386480), (106, 1216440), (109, 1182960), (120, 1074522), (124, 1039860), (144, 895435), (155, 831888), (159, 810960), (180, 716348), (186, 693240), (212, 608220), (218, 591480), (240, 537261), (248, 519930), (265, 486576), (279, 462160), (310, 415944), (318, 405480), (327, 394320), (360, 358174), (372, 346620), (424, 304110), (436, 295740), (465, 277296), (477, 270320), (496, 259965), (530, 243288), (545, 236592), (558, 231080), (620, 207972), (636, 202740), (654, 197160), (720, 179087), (744, 173310), (795, 162192), (848, 152055), (872, 147870), (930, 138648), (954, 135160), (981, 131440), (1060, 121644), (1090, 118296), (1116, 115540), (1240, 103986), (1272, 101370), (1308, 98580), (1395, 92432), (1488, 86655), (1590, 81096), (1635, 78864), (1643, 78480), (1744, 73935), (1860, 69324), (1908, 67580), (1962, 65720), (2120, 60822), (2180, 59148), (2232, 57770), (2385, 54064), (2480, 51993), (2544, 50685), (2616, 49290), (2790, 46216), (3180, 40548), (3270, 39432), (3286, 39240), (3379, 38160), (3720, 34662), (3816, 33790), (3924, 32860), (4240, 30411), (4360, 29574), (4464, 28885), (4770, 27032), (4905, 26288), (4929, 26160), (5232, 24645), (5580, 23108), (5777, 22320), (6360, 20274), (6540, 19716), (6572, 19620), (6758, 19080), (7440, 17331), (7632, 16895), (7848, 16430), (8215, 15696), (8720, 14787), (9540, 13516), (9810, 13144), (9858, 13080), (10137, 12720), (11160, 11554)]