19984480

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 50349600

約数和(自身を除く): 30365120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 59, 73, 80, 116, 118, 145, 146, 160, 232, 236, 290, 292, 295, 365, 464, 472, 580, 584, 590, 730, 928, 944, 1160, 1168, 1180, 1460, 1711, 1888, 2117, 2320, 2336, 2360, 2920, 3422, 4234, 4307, 4640, 4720, 5840, 6844, 8468, 8555, 8614, 9440, 10585, 11680, 13688, 16936, 17110, 17228, 21170, 21535, 27376, 33872, 34220, 34456, 42340, 43070, 54752, 67744, 68440, 68912, 84680, 86140, 124903, 136880, 137824, 169360, 172280, 249806, 273760, 338720, 344560, 499612, 624515, 689120, 999224, 1249030, 1998448, 2498060, 3996896, 4996120, 9992240, 19984480]

約数ペア:

[(1, 19984480), (2, 9992240), (4, 4996120), (5, 3996896), (8, 2498060), (10, 1998448), (16, 1249030), (20, 999224), (29, 689120), (32, 624515), (40, 499612), (58, 344560), (59, 338720), (73, 273760), (80, 249806), (116, 172280), (118, 169360), (145, 137824), (146, 136880), (160, 124903), (232, 86140), (236, 84680), (290, 68912), (292, 68440), (295, 67744), (365, 54752), (464, 43070), (472, 42340), (580, 34456), (584, 34220), (590, 33872), (730, 27376), (928, 21535), (944, 21170), (1160, 17228), (1168, 17110), (1180, 16936), (1460, 13688), (1711, 11680), (1888, 10585), (2117, 9440), (2320, 8614), (2336, 8555), (2360, 8468), (2920, 6844), (3422, 5840), (4234, 4720), (4307, 4640)]