21517200

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 180

約数和(自身を含む): 76956880

約数和(自身を除く): 55439680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 43, 45, 48, 50, 60, 72, 75, 80, 86, 90, 100, 120, 129, 139, 144, 150, 172, 180, 200, 215, 225, 240, 258, 278, 300, 344, 360, 387, 400, 417, 430, 450, 516, 556, 600, 645, 688, 695, 720, 774, 834, 860, 900, 1032, 1075, 1112, 1200, 1251, 1290, 1390, 1548, 1668, 1720, 1800, 1935, 2064, 2085, 2150, 2224, 2502, 2580, 2780, 3096, 3225, 3336, 3440, 3475, 3600, 3870, 4170, 4300, 5004, 5160, 5560, 5977, 6192, 6255, 6450, 6672, 6950, 7740, 8340, 8600, 9675, 10008, 10320, 10425, 11120, 11954, 12510, 12900, 13900, 15480, 16680, 17200, 17931, 19350, 20016, 20850, 23908, 25020, 25800, 27800, 29885, 30960, 31275, 33360, 35862, 38700, 41700, 47816, 50040, 51600, 53793, 55600, 59770, 62550, 71724, 77400, 83400, 89655, 95632, 100080, 107586, 119540, 125100, 143448, 149425, 154800, 166800, 179310, 215172, 239080, 250200, 268965, 286896, 298850, 358620, 430344, 448275, 478160, 500400, 537930, 597700, 717240, 860688, 896550, 1075860, 1195400, 1344825, 1434480, 1793100, 2151720, 2390800, 2689650, 3586200, 4303440, 5379300, 7172400, 10758600, 21517200]

約数ペア:

[(1, 21517200), (2, 10758600), (3, 7172400), (4, 5379300), (5, 4303440), (6, 3586200), (8, 2689650), (9, 2390800), (10, 2151720), (12, 1793100), (15, 1434480), (16, 1344825), (18, 1195400), (20, 1075860), (24, 896550), (25, 860688), (30, 717240), (36, 597700), (40, 537930), (43, 500400), (45, 478160), (48, 448275), (50, 430344), (60, 358620), (72, 298850), (75, 286896), (80, 268965), (86, 250200), (90, 239080), (100, 215172), (120, 179310), (129, 166800), (139, 154800), (144, 149425), (150, 143448), (172, 125100), (180, 119540), (200, 107586), (215, 100080), (225, 95632), (240, 89655), (258, 83400), (278, 77400), (300, 71724), (344, 62550), (360, 59770), (387, 55600), (400, 53793), (417, 51600), (430, 50040), (450, 47816), (516, 41700), (556, 38700), (600, 35862), (645, 33360), (688, 31275), (695, 30960), (720, 29885), (774, 27800), (834, 25800), (860, 25020), (900, 23908), (1032, 20850), (1075, 20016), (1112, 19350), (1200, 17931), (1251, 17200), (1290, 16680), (1390, 15480), (1548, 13900), (1668, 12900), (1720, 12510), (1800, 11954), (1935, 11120), (2064, 10425), (2085, 10320), (2150, 10008), (2224, 9675), (2502, 8600), (2580, 8340), (2780, 7740), (3096, 6950), (3225, 6672), (3336, 6450), (3440, 6255), (3475, 6192), (3600, 5977), (3870, 5560), (4170, 5160), (4300, 5004)]