19626880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1$

素因数の和:376

約数の個数: 128

約数和(自身を含む): 57919680

約数和(自身を除く): 38292800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 337, 364, 416, 448, 455, 520, 560, 640, 674, 728, 832, 896, 910, 1040, 1120, 1348, 1456, 1664, 1685, 1820, 2080, 2240, 2359, 2696, 2912, 3370, 3640, 4160, 4381, 4480, 4718, 5392, 5824, 6740, 7280, 8320, 8762, 9436, 10784, 11648, 11795, 13480, 14560, 17524, 18872, 21568, 21905, 23590, 26960, 29120, 30667, 35048, 37744, 43136, 43810, 47180, 53920, 58240, 61334, 70096, 75488, 87620, 94360, 107840, 122668, 140192, 150976, 153335, 175240, 188720, 215680, 245336, 280384, 301952, 306670, 350480, 377440, 490672, 560768, 613340, 700960, 754880, 981344, 1226680, 1401920, 1509760, 1962688, 2453360, 2803840, 3925376, 4906720, 9813440, 19626880]

約数ペア:

[(1, 19626880), (2, 9813440), (4, 4906720), (5, 3925376), (7, 2803840), (8, 2453360), (10, 1962688), (13, 1509760), (14, 1401920), (16, 1226680), (20, 981344), (26, 754880), (28, 700960), (32, 613340), (35, 560768), (40, 490672), (52, 377440), (56, 350480), (64, 306670), (65, 301952), (70, 280384), (80, 245336), (91, 215680), (104, 188720), (112, 175240), (128, 153335), (130, 150976), (140, 140192), (160, 122668), (182, 107840), (208, 94360), (224, 87620), (260, 75488), (280, 70096), (320, 61334), (337, 58240), (364, 53920), (416, 47180), (448, 43810), (455, 43136), (520, 37744), (560, 35048), (640, 30667), (674, 29120), (728, 26960), (832, 23590), (896, 21905), (910, 21568), (1040, 18872), (1120, 17524), (1348, 14560), (1456, 13480), (1664, 11795), (1685, 11648), (1820, 10784), (2080, 9436), (2240, 8762), (2359, 8320), (2696, 7280), (2912, 6740), (3370, 5824), (3640, 5392), (4160, 4718), (4381, 4480)]