668888640

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{33179}}^1$

素因数の和:33209

約数の個数: 168

約数和(自身を含む): 2629448640

約数和(自身を除く): 1960560000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 20160, 33179, 66358, 99537, 132716, 165895, 199074, 232253, 265432, 298611, 331790, 398148, 464506, 497685, 530864, 597222, 663580, 696759, 796296, 929012, 995370, 1061728, 1161265, 1194444, 1327160, 1393518, 1493055, 1592592, 1858024, 1990740, 2090277, 2123456, 2322530, 2388888, 2654320, 2787036, 2986110, 3185184, 3483795, 3716048, 3981480, 4180554, 4645060, 4777776, 5308640, 5574072, 5972220, 6370368, 6967590, 7432096, 7962960, 8361108, 9290120, 9555552, 10451385, 10617280, 11148144, 11944440, 13935180, 14864192, 15925920, 16722216, 18580240, 19111104, 20902770, 22296288, 23888880, 27870360, 31851840, 33444432, 37160480, 41805540, 44592576, 47777760, 55740720, 66888864, 74320960, 83611080, 95555520, 111481440, 133777728, 167222160, 222962880, 334444320, 668888640]

約数ペア:

[(1, 668888640), (2, 334444320), (3, 222962880), (4, 167222160), (5, 133777728), (6, 111481440), (7, 95555520), (8, 83611080), (9, 74320960), (10, 66888864), (12, 55740720), (14, 47777760), (15, 44592576), (16, 41805540), (18, 37160480), (20, 33444432), (21, 31851840), (24, 27870360), (28, 23888880), (30, 22296288), (32, 20902770), (35, 19111104), (36, 18580240), (40, 16722216), (42, 15925920), (45, 14864192), (48, 13935180), (56, 11944440), (60, 11148144), (63, 10617280), (64, 10451385), (70, 9555552), (72, 9290120), (80, 8361108), (84, 7962960), (90, 7432096), (96, 6967590), (105, 6370368), (112, 5972220), (120, 5574072), (126, 5308640), (140, 4777776), (144, 4645060), (160, 4180554), (168, 3981480), (180, 3716048), (192, 3483795), (210, 3185184), (224, 2986110), (240, 2787036), (252, 2654320), (280, 2388888), (288, 2322530), (315, 2123456), (320, 2090277), (336, 1990740), (360, 1858024), (420, 1592592), (448, 1493055), (480, 1393518), (504, 1327160), (560, 1194444), (576, 1161265), (630, 1061728), (672, 995370), (720, 929012), (840, 796296), (960, 696759), (1008, 663580), (1120, 597222), (1260, 530864), (1344, 497685), (1440, 464506), (1680, 398148), (2016, 331790), (2240, 298611), (2520, 265432), (2880, 232253), (3360, 199074), (4032, 165895), (5040, 132716), (6720, 99537), (10080, 66358), (20160, 33179)]