19668960

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:210

約数の個数: 192

約数和(自身を含む): 71668800

約数和(自身を除く): 51999840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 96, 108, 116, 120, 135, 144, 145, 157, 160, 174, 180, 216, 232, 240, 261, 270, 288, 290, 314, 348, 360, 432, 435, 464, 471, 480, 522, 540, 580, 628, 696, 720, 783, 785, 864, 870, 928, 942, 1044, 1080, 1160, 1256, 1305, 1392, 1413, 1440, 1566, 1570, 1740, 1884, 2088, 2160, 2320, 2355, 2512, 2610, 2784, 2826, 3132, 3140, 3480, 3768, 3915, 4176, 4239, 4320, 4553, 4640, 4710, 5024, 5220, 5652, 6264, 6280, 6960, 7065, 7536, 7830, 8352, 8478, 9106, 9420, 10440, 11304, 12528, 12560, 13659, 13920, 14130, 15072, 15660, 16956, 18212, 18840, 20880, 21195, 22608, 22765, 25056, 25120, 27318, 28260, 31320, 33912, 36424, 37680, 40977, 41760, 42390, 45216, 45530, 54636, 56520, 62640, 67824, 68295, 72848, 75360, 81954, 84780, 91060, 109272, 113040, 122931, 125280, 135648, 136590, 145696, 163908, 169560, 182120, 204885, 218544, 226080, 245862, 273180, 327816, 339120, 364240, 409770, 437088, 491724, 546360, 614655, 655632, 678240, 728480, 819540, 983448, 1092720, 1229310, 1311264, 1639080, 1966896, 2185440, 2458620, 3278160, 3933792, 4917240, 6556320, 9834480, 19668960]

約数ペア:

[(1, 19668960), (2, 9834480), (3, 6556320), (4, 4917240), (5, 3933792), (6, 3278160), (8, 2458620), (9, 2185440), (10, 1966896), (12, 1639080), (15, 1311264), (16, 1229310), (18, 1092720), (20, 983448), (24, 819540), (27, 728480), (29, 678240), (30, 655632), (32, 614655), (36, 546360), (40, 491724), (45, 437088), (48, 409770), (54, 364240), (58, 339120), (60, 327816), (72, 273180), (80, 245862), (87, 226080), (90, 218544), (96, 204885), (108, 182120), (116, 169560), (120, 163908), (135, 145696), (144, 136590), (145, 135648), (157, 125280), (160, 122931), (174, 113040), (180, 109272), (216, 91060), (232, 84780), (240, 81954), (261, 75360), (270, 72848), (288, 68295), (290, 67824), (314, 62640), (348, 56520), (360, 54636), (432, 45530), (435, 45216), (464, 42390), (471, 41760), (480, 40977), (522, 37680), (540, 36424), (580, 33912), (628, 31320), (696, 28260), (720, 27318), (783, 25120), (785, 25056), (864, 22765), (870, 22608), (928, 21195), (942, 20880), (1044, 18840), (1080, 18212), (1160, 16956), (1256, 15660), (1305, 15072), (1392, 14130), (1413, 13920), (1440, 13659), (1566, 12560), (1570, 12528), (1740, 11304), (1884, 10440), (2088, 9420), (2160, 9106), (2320, 8478), (2355, 8352), (2512, 7830), (2610, 7536), (2784, 7065), (2826, 6960), (3132, 6280), (3140, 6264), (3480, 5652), (3768, 5220), (3915, 5024), (4176, 4710), (4239, 4640), (4320, 4553)]