128276640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{389}}^1$

素因数の和:639

約数の個数: 144

約数和(自身を含む): 440785800

約数和(自身を除く): 312509160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 229, 240, 288, 360, 389, 458, 480, 687, 720, 778, 916, 1145, 1167, 1374, 1440, 1556, 1832, 1945, 2061, 2290, 2334, 2748, 3112, 3435, 3501, 3664, 3890, 4122, 4580, 4668, 5496, 5835, 6224, 6870, 7002, 7328, 7780, 8244, 9160, 9336, 10305, 10992, 11670, 12448, 13740, 14004, 15560, 16488, 17505, 18320, 18672, 20610, 21984, 23340, 27480, 28008, 31120, 32976, 35010, 36640, 37344, 41220, 46680, 54960, 56016, 62240, 65952, 70020, 82440, 89081, 93360, 109920, 112032, 140040, 164880, 178162, 186720, 267243, 280080, 329760, 356324, 445405, 534486, 560160, 712648, 801729, 890810, 1068972, 1336215, 1425296, 1603458, 1781620, 2137944, 2672430, 2850592, 3206916, 3563240, 4008645, 4275888, 5344860, 6413832, 7126480, 8017290, 8551776, 10689720, 12827664, 14252960, 16034580, 21379440, 25655328, 32069160, 42758880, 64138320, 128276640]

約数ペア:

[(1, 128276640), (2, 64138320), (3, 42758880), (4, 32069160), (5, 25655328), (6, 21379440), (8, 16034580), (9, 14252960), (10, 12827664), (12, 10689720), (15, 8551776), (16, 8017290), (18, 7126480), (20, 6413832), (24, 5344860), (30, 4275888), (32, 4008645), (36, 3563240), (40, 3206916), (45, 2850592), (48, 2672430), (60, 2137944), (72, 1781620), (80, 1603458), (90, 1425296), (96, 1336215), (120, 1068972), (144, 890810), (160, 801729), (180, 712648), (229, 560160), (240, 534486), (288, 445405), (360, 356324), (389, 329760), (458, 280080), (480, 267243), (687, 186720), (720, 178162), (778, 164880), (916, 140040), (1145, 112032), (1167, 109920), (1374, 93360), (1440, 89081), (1556, 82440), (1832, 70020), (1945, 65952), (2061, 62240), (2290, 56016), (2334, 54960), (2748, 46680), (3112, 41220), (3435, 37344), (3501, 36640), (3664, 35010), (3890, 32976), (4122, 31120), (4580, 28008), (4668, 27480), (5496, 23340), (5835, 21984), (6224, 20610), (6870, 18672), (7002, 18320), (7328, 17505), (7780, 16488), (8244, 15560), (9160, 14004), (9336, 13740), (10305, 12448), (10992, 11670)]