21259342720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{431399}}^1$

素因数の和:431436

約数の個数: 128

約数和(自身を含む): 63364032000

約数和(自身を除く): 42104689280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 640, 704, 770, 880, 896, 1120, 1232, 1408, 1540, 1760, 2240, 2464, 3080, 3520, 4480, 4928, 6160, 7040, 9856, 12320, 24640, 49280, 431399, 862798, 1725596, 2156995, 3019793, 3451192, 4313990, 4745389, 6039586, 6902384, 8627980, 9490778, 12079172, 13804768, 15098965, 17255960, 18981556, 23726945, 24158344, 27609536, 30197930, 33217723, 34511920, 37963112, 47453890, 48316688, 55219072, 60395860, 66435446, 69023840, 75926224, 94907780, 96633376, 120791720, 132870892, 138047680, 151852448, 166088615, 189815560, 193266752, 241583440, 265741784, 276095360, 303704896, 332177230, 379631120, 386533504, 483166880, 531483568, 607409792, 664354460, 759262240, 966333760, 1062967136, 1328708920, 1518524480, 1932667520, 2125934272, 2657417840, 3037048960, 4251868544, 5314835680, 10629671360, 21259342720]

約数ペア:

[(1, 21259342720), (2, 10629671360), (4, 5314835680), (5, 4251868544), (7, 3037048960), (8, 2657417840), (10, 2125934272), (11, 1932667520), (14, 1518524480), (16, 1328708920), (20, 1062967136), (22, 966333760), (28, 759262240), (32, 664354460), (35, 607409792), (40, 531483568), (44, 483166880), (55, 386533504), (56, 379631120), (64, 332177230), (70, 303704896), (77, 276095360), (80, 265741784), (88, 241583440), (110, 193266752), (112, 189815560), (128, 166088615), (140, 151852448), (154, 138047680), (160, 132870892), (176, 120791720), (220, 96633376), (224, 94907780), (280, 75926224), (308, 69023840), (320, 66435446), (352, 60395860), (385, 55219072), (440, 48316688), (448, 47453890), (560, 37963112), (616, 34511920), (640, 33217723), (704, 30197930), (770, 27609536), (880, 24158344), (896, 23726945), (1120, 18981556), (1232, 17255960), (1408, 15098965), (1540, 13804768), (1760, 12079172), (2240, 9490778), (2464, 8627980), (3080, 6902384), (3520, 6039586), (4480, 4745389), (4928, 4313990), (6160, 3451192), (7040, 3019793), (9856, 2156995), (12320, 1725596), (24640, 862798), (49280, 431399)]