245720880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:260

約数の個数: 240

約数和(自身を含む): 868158720

約数和(自身を除く): 622437840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 101, 109, 120, 124, 144, 155, 180, 186, 202, 218, 240, 248, 279, 303, 310, 327, 360, 372, 404, 436, 465, 496, 505, 545, 558, 606, 620, 654, 720, 744, 808, 872, 909, 930, 981, 1010, 1090, 1116, 1212, 1240, 1308, 1395, 1488, 1515, 1616, 1635, 1744, 1818, 1860, 1962, 2020, 2180, 2232, 2424, 2480, 2616, 2790, 3030, 3131, 3270, 3379, 3636, 3720, 3924, 4040, 4360, 4464, 4545, 4848, 4905, 5232, 5580, 6060, 6262, 6540, 6758, 7272, 7440, 7848, 8080, 8720, 9090, 9393, 9810, 10137, 11009, 11160, 12120, 12524, 13080, 13516, 14544, 15655, 15696, 16895, 18180, 18786, 19620, 20274, 22018, 22320, 24240, 25048, 26160, 27032, 28179, 30411, 31310, 33027, 33790, 36360, 37572, 39240, 40548, 44036, 46965, 50096, 50685, 54064, 55045, 56358, 60822, 62620, 66054, 67580, 72720, 75144, 78480, 81096, 88072, 93930, 99081, 101370, 110090, 112716, 121644, 125240, 132108, 135160, 140895, 150288, 152055, 162192, 165135, 176144, 187860, 198162, 202740, 220180, 225432, 243288, 250480, 264216, 270320, 281790, 304110, 330270, 341279, 375720, 396324, 405480, 440360, 450864, 486576, 495405, 528432, 563580, 608220, 660540, 682558, 751440, 792648, 810960, 880720, 990810, 1023837, 1127160, 1216440, 1321080, 1365116, 1585296, 1706395, 1981620, 2047674, 2254320, 2432880, 2642160, 2730232, 3071511, 3412790, 3963240, 4095348, 5119185, 5460464, 6143022, 6825580, 7926480, 8190696, 10238370, 12286044, 13651160, 15357555, 16381392, 20476740, 24572088, 27302320, 30715110, 40953480, 49144176, 61430220, 81906960, 122860440, 245720880]

約数ペア:

[(1, 245720880), (2, 122860440), (3, 81906960), (4, 61430220), (5, 49144176), (6, 40953480), (8, 30715110), (9, 27302320), (10, 24572088), (12, 20476740), (15, 16381392), (16, 15357555), (18, 13651160), (20, 12286044), (24, 10238370), (30, 8190696), (31, 7926480), (36, 6825580), (40, 6143022), (45, 5460464), (48, 5119185), (60, 4095348), (62, 3963240), (72, 3412790), (80, 3071511), (90, 2730232), (93, 2642160), (101, 2432880), (109, 2254320), (120, 2047674), (124, 1981620), (144, 1706395), (155, 1585296), (180, 1365116), (186, 1321080), (202, 1216440), (218, 1127160), (240, 1023837), (248, 990810), (279, 880720), (303, 810960), (310, 792648), (327, 751440), (360, 682558), (372, 660540), (404, 608220), (436, 563580), (465, 528432), (496, 495405), (505, 486576), (545, 450864), (558, 440360), (606, 405480), (620, 396324), (654, 375720), (720, 341279), (744, 330270), (808, 304110), (872, 281790), (909, 270320), (930, 264216), (981, 250480), (1010, 243288), (1090, 225432), (1116, 220180), (1212, 202740), (1240, 198162), (1308, 187860), (1395, 176144), (1488, 165135), (1515, 162192), (1616, 152055), (1635, 150288), (1744, 140895), (1818, 135160), (1860, 132108), (1962, 125240), (2020, 121644), (2180, 112716), (2232, 110090), (2424, 101370), (2480, 99081), (2616, 93930), (2790, 88072), (3030, 81096), (3131, 78480), (3270, 75144), (3379, 72720), (3636, 67580), (3720, 66054), (3924, 62620), (4040, 60822), (4360, 56358), (4464, 55045), (4545, 54064), (4848, 50685), (4905, 50096), (5232, 46965), (5580, 44036), (6060, 40548), (6262, 39240), (6540, 37572), (6758, 36360), (7272, 33790), (7440, 33027), (7848, 31310), (8080, 30411), (8720, 28179), (9090, 27032), (9393, 26160), (9810, 25048), (10137, 24240), (11009, 22320), (11160, 22018), (12120, 20274), (12524, 19620), (13080, 18786), (13516, 18180), (14544, 16895), (15655, 15696)]