128799720

素因数分解:

$2^3\times 3^6\times 5^1\times 7^1\times {\mathrm{631}}^1$

素因数の和:667

約数の個数: 224

約数和(自身を含む): 497358720

約数和(自身を除く): 368559000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 630, 631, 648, 729, 756, 810, 840, 945, 972, 1080, 1134, 1215, 1260, 1262, 1458, 1512, 1620, 1701, 1890, 1893, 1944, 2268, 2430, 2520, 2524, 2835, 2916, 3155, 3240, 3402, 3645, 3780, 3786, 4417, 4536, 4860, 5048, 5103, 5670, 5679, 5832, 6310, 6804, 7290, 7560, 7572, 8505, 8834, 9465, 9720, 10206, 11340, 11358, 12620, 13251, 13608, 14580, 15144, 17010, 17037, 17668, 18930, 20412, 22085, 22680, 22716, 25240, 25515, 26502, 28395, 29160, 34020, 34074, 35336, 37860, 39753, 40824, 44170, 45432, 51030, 51111, 53004, 56790, 66255, 68040, 68148, 75720, 79506, 85185, 88340, 102060, 102222, 106008, 113580, 119259, 132510, 136296, 153333, 159012, 170370, 176680, 198765, 204120, 204444, 227160, 238518, 255555, 265020, 306666, 318024, 340740, 357777, 397530, 408888, 459999, 477036, 511110, 530040, 596295, 613332, 681480, 715554, 766665, 795060, 919998, 954072, 1022220, 1073331, 1192590, 1226664, 1431108, 1533330, 1590120, 1788885, 1839996, 2044440, 2146662, 2299995, 2385180, 2862216, 3066660, 3219993, 3577770, 3679992, 4293324, 4599990, 4770360, 5366655, 6133320, 6439986, 7155540, 8586648, 9199980, 10733310, 12879972, 14311080, 16099965, 18399960, 21466620, 25759944, 32199930, 42933240, 64399860, 128799720]

約数ペア:

[(1, 128799720), (2, 64399860), (3, 42933240), (4, 32199930), (5, 25759944), (6, 21466620), (7, 18399960), (8, 16099965), (9, 14311080), (10, 12879972), (12, 10733310), (14, 9199980), (15, 8586648), (18, 7155540), (20, 6439986), (21, 6133320), (24, 5366655), (27, 4770360), (28, 4599990), (30, 4293324), (35, 3679992), (36, 3577770), (40, 3219993), (42, 3066660), (45, 2862216), (54, 2385180), (56, 2299995), (60, 2146662), (63, 2044440), (70, 1839996), (72, 1788885), (81, 1590120), (84, 1533330), (90, 1431108), (105, 1226664), (108, 1192590), (120, 1073331), (126, 1022220), (135, 954072), (140, 919998), (162, 795060), (168, 766665), (180, 715554), (189, 681480), (210, 613332), (216, 596295), (243, 530040), (252, 511110), (270, 477036), (280, 459999), (315, 408888), (324, 397530), (360, 357777), (378, 340740), (405, 318024), (420, 306666), (486, 265020), (504, 255555), (540, 238518), (567, 227160), (630, 204444), (631, 204120), (648, 198765), (729, 176680), (756, 170370), (810, 159012), (840, 153333), (945, 136296), (972, 132510), (1080, 119259), (1134, 113580), (1215, 106008), (1260, 102222), (1262, 102060), (1458, 88340), (1512, 85185), (1620, 79506), (1701, 75720), (1890, 68148), (1893, 68040), (1944, 66255), (2268, 56790), (2430, 53004), (2520, 51111), (2524, 51030), (2835, 45432), (2916, 44170), (3155, 40824), (3240, 39753), (3402, 37860), (3645, 35336), (3780, 34074), (3786, 34020), (4417, 29160), (4536, 28395), (4860, 26502), (5048, 25515), (5103, 25240), (5670, 22716), (5679, 22680), (5832, 22085), (6310, 20412), (6804, 18930), (7290, 17668), (7560, 17037), (7572, 17010), (8505, 15144), (8834, 14580), (9465, 13608), (9720, 13251), (10206, 12620), (11340, 11358)]