20984400

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 240

約数和(自身を含む): 78417600

約数和(自身を除く): 57433200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 29, 30, 36, 40, 45, 48, 50, 54, 58, 60, 67, 72, 75, 80, 87, 90, 100, 108, 116, 120, 134, 135, 144, 145, 150, 174, 180, 200, 201, 216, 225, 232, 240, 261, 268, 270, 290, 300, 335, 348, 360, 400, 402, 432, 435, 450, 464, 522, 536, 540, 580, 600, 603, 670, 675, 696, 720, 725, 783, 804, 870, 900, 1005, 1044, 1072, 1080, 1160, 1200, 1206, 1305, 1340, 1350, 1392, 1450, 1566, 1608, 1675, 1740, 1800, 1809, 1943, 2010, 2088, 2160, 2175, 2320, 2412, 2610, 2680, 2700, 2900, 3015, 3132, 3216, 3350, 3480, 3600, 3618, 3886, 3915, 4020, 4176, 4350, 4824, 5025, 5220, 5360, 5400, 5800, 5829, 6030, 6264, 6525, 6700, 6960, 7236, 7772, 7830, 8040, 8700, 9045, 9648, 9715, 10050, 10440, 10800, 11600, 11658, 12060, 12528, 13050, 13400, 14472, 15075, 15544, 15660, 16080, 17400, 17487, 18090, 19430, 19575, 20100, 20880, 23316, 24120, 26100, 26800, 28944, 29145, 30150, 31088, 31320, 34800, 34974, 36180, 38860, 39150, 40200, 45225, 46632, 48240, 48575, 52200, 52461, 58290, 60300, 62640, 69948, 72360, 77720, 78300, 80400, 87435, 90450, 93264, 97150, 104400, 104922, 116580, 120600, 139896, 144720, 145725, 155440, 156600, 174870, 180900, 194300, 209844, 233160, 241200, 262305, 279792, 291450, 313200, 349740, 361800, 388600, 419688, 437175, 466320, 524610, 582900, 699480, 723600, 777200, 839376, 874350, 1049220, 1165800, 1311525, 1398960, 1748700, 2098440, 2331600, 2623050, 3497400, 4196880, 5246100, 6994800, 10492200, 20984400]

約数ペア:

[(1, 20984400), (2, 10492200), (3, 6994800), (4, 5246100), (5, 4196880), (6, 3497400), (8, 2623050), (9, 2331600), (10, 2098440), (12, 1748700), (15, 1398960), (16, 1311525), (18, 1165800), (20, 1049220), (24, 874350), (25, 839376), (27, 777200), (29, 723600), (30, 699480), (36, 582900), (40, 524610), (45, 466320), (48, 437175), (50, 419688), (54, 388600), (58, 361800), (60, 349740), (67, 313200), (72, 291450), (75, 279792), (80, 262305), (87, 241200), (90, 233160), (100, 209844), (108, 194300), (116, 180900), (120, 174870), (134, 156600), (135, 155440), (144, 145725), (145, 144720), (150, 139896), (174, 120600), (180, 116580), (200, 104922), (201, 104400), (216, 97150), (225, 93264), (232, 90450), (240, 87435), (261, 80400), (268, 78300), (270, 77720), (290, 72360), (300, 69948), (335, 62640), (348, 60300), (360, 58290), (400, 52461), (402, 52200), (432, 48575), (435, 48240), (450, 46632), (464, 45225), (522, 40200), (536, 39150), (540, 38860), (580, 36180), (600, 34974), (603, 34800), (670, 31320), (675, 31088), (696, 30150), (720, 29145), (725, 28944), (783, 26800), (804, 26100), (870, 24120), (900, 23316), (1005, 20880), (1044, 20100), (1072, 19575), (1080, 19430), (1160, 18090), (1200, 17487), (1206, 17400), (1305, 16080), (1340, 15660), (1350, 15544), (1392, 15075), (1450, 14472), (1566, 13400), (1608, 13050), (1675, 12528), (1740, 12060), (1800, 11658), (1809, 11600), (1943, 10800), (2010, 10440), (2088, 10050), (2160, 9715), (2175, 9648), (2320, 9045), (2412, 8700), (2610, 8040), (2680, 7830), (2700, 7772), (2900, 7236), (3015, 6960), (3132, 6700), (3216, 6525), (3350, 6264), (3480, 6030), (3600, 5829), (3618, 5800), (3886, 5400), (3915, 5360), (4020, 5220), (4176, 5025), (4350, 4824)]