21784800

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 144

約数和(自身を含む): 73589040

約数和(自身を除く): 51804240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 29, 30, 32, 40, 48, 50, 58, 60, 75, 80, 87, 96, 100, 116, 120, 145, 150, 160, 174, 200, 232, 240, 290, 300, 313, 348, 400, 435, 464, 480, 580, 600, 626, 696, 725, 800, 870, 928, 939, 1160, 1200, 1252, 1392, 1450, 1565, 1740, 1878, 2175, 2320, 2400, 2504, 2784, 2900, 3130, 3480, 3756, 4350, 4640, 4695, 5008, 5800, 6260, 6960, 7512, 7825, 8700, 9077, 9390, 10016, 11600, 12520, 13920, 15024, 15650, 17400, 18154, 18780, 23200, 23475, 25040, 27231, 30048, 31300, 34800, 36308, 37560, 45385, 46950, 50080, 54462, 62600, 69600, 72616, 75120, 90770, 93900, 108924, 125200, 136155, 145232, 150240, 181540, 187800, 217848, 226925, 250400, 272310, 290464, 363080, 375600, 435696, 453850, 544620, 680775, 726160, 751200, 871392, 907700, 1089240, 1361550, 1452320, 1815400, 2178480, 2723100, 3630800, 4356960, 5446200, 7261600, 10892400, 21784800]

約数ペア:

[(1, 21784800), (2, 10892400), (3, 7261600), (4, 5446200), (5, 4356960), (6, 3630800), (8, 2723100), (10, 2178480), (12, 1815400), (15, 1452320), (16, 1361550), (20, 1089240), (24, 907700), (25, 871392), (29, 751200), (30, 726160), (32, 680775), (40, 544620), (48, 453850), (50, 435696), (58, 375600), (60, 363080), (75, 290464), (80, 272310), (87, 250400), (96, 226925), (100, 217848), (116, 187800), (120, 181540), (145, 150240), (150, 145232), (160, 136155), (174, 125200), (200, 108924), (232, 93900), (240, 90770), (290, 75120), (300, 72616), (313, 69600), (348, 62600), (400, 54462), (435, 50080), (464, 46950), (480, 45385), (580, 37560), (600, 36308), (626, 34800), (696, 31300), (725, 30048), (800, 27231), (870, 25040), (928, 23475), (939, 23200), (1160, 18780), (1200, 18154), (1252, 17400), (1392, 15650), (1450, 15024), (1565, 13920), (1740, 12520), (1878, 11600), (2175, 10016), (2320, 9390), (2400, 9077), (2504, 8700), (2784, 7825), (2900, 7512), (3130, 6960), (3480, 6260), (3756, 5800), (4350, 5008), (4640, 4695)]