19761280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1$

素因数の和:438

約数の個数: 128

約数和(自身を含む): 59045760

約数和(自身を除く): 39284480

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, 401, 440, 448, 560, 616, 640, 704, 770, 802, 880, 896, 1120, 1232, 1408, 1540, 1604, 1760, 2005, 2240, 2464, 2807, 3080, 3208, 3520, 4010, 4411, 4480, 4928, 5614, 6160, 6416, 7040, 8020, 8822, 9856, 11228, 12320, 12832, 14035, 16040, 17644, 22055, 22456, 24640, 25664, 28070, 30877, 32080, 35288, 44110, 44912, 49280, 51328, 56140, 61754, 64160, 70576, 88220, 89824, 112280, 123508, 128320, 141152, 154385, 176440, 179648, 224560, 247016, 256640, 282304, 308770, 352880, 359296, 449120, 494032, 564608, 617540, 705760, 898240, 988064, 1235080, 1411520, 1796480, 1976128, 2470160, 2823040, 3952256, 4940320, 9880640, 19761280]

約数ペア:

[(1, 19761280), (2, 9880640), (4, 4940320), (5, 3952256), (7, 2823040), (8, 2470160), (10, 1976128), (11, 1796480), (14, 1411520), (16, 1235080), (20, 988064), (22, 898240), (28, 705760), (32, 617540), (35, 564608), (40, 494032), (44, 449120), (55, 359296), (56, 352880), (64, 308770), (70, 282304), (77, 256640), (80, 247016), (88, 224560), (110, 179648), (112, 176440), (128, 154385), (140, 141152), (154, 128320), (160, 123508), (176, 112280), (220, 89824), (224, 88220), (280, 70576), (308, 64160), (320, 61754), (352, 56140), (385, 51328), (401, 49280), (440, 44912), (448, 44110), (560, 35288), (616, 32080), (640, 30877), (704, 28070), (770, 25664), (802, 24640), (880, 22456), (896, 22055), (1120, 17644), (1232, 16040), (1408, 14035), (1540, 12832), (1604, 12320), (1760, 11228), (2005, 9856), (2240, 8822), (2464, 8020), (2807, 7040), (3080, 6416), (3208, 6160), (3520, 5614), (4010, 4928), (4411, 4480)]