128882880

素因数分解:

$2^6\times 3^3\times 5^1\times 7^1\times {\mathrm{2131}}^1$

素因数の和:2164

約数の個数: 224

約数和(自身を含む): 519866880

約数和(自身を除く): 390984000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 420, 432, 448, 480, 504, 540, 560, 576, 630, 672, 720, 756, 840, 864, 945, 960, 1008, 1080, 1120, 1260, 1344, 1440, 1512, 1680, 1728, 1890, 2016, 2131, 2160, 2240, 2520, 2880, 3024, 3360, 3780, 4032, 4262, 4320, 5040, 6048, 6393, 6720, 7560, 8524, 8640, 10080, 10655, 12096, 12786, 14917, 15120, 17048, 19179, 20160, 21310, 25572, 29834, 30240, 31965, 34096, 38358, 42620, 44751, 51144, 57537, 59668, 60480, 63930, 68192, 74585, 76716, 85240, 89502, 95895, 102288, 115074, 119336, 127860, 134253, 136384, 149170, 153432, 170480, 179004, 191790, 204576, 223755, 230148, 238672, 255720, 268506, 287685, 298340, 306864, 340960, 358008, 383580, 402759, 409152, 447510, 460296, 477344, 511440, 537012, 575370, 596680, 613728, 671265, 681920, 716016, 767160, 805518, 895020, 920592, 954688, 1022880, 1074024, 1150740, 1193360, 1227456, 1342530, 1432032, 1534320, 1611036, 1790040, 1841184, 2013795, 2045760, 2148048, 2301480, 2386720, 2685060, 2864064, 3068640, 3222072, 3580080, 3682368, 4027590, 4296096, 4602960, 4773440, 5370120, 6137280, 6444144, 7160160, 8055180, 8592192, 9205920, 10740240, 12888288, 14320320, 16110360, 18411840, 21480480, 25776576, 32220720, 42960960, 64441440, 128882880]

約数ペア:

[(1, 128882880), (2, 64441440), (3, 42960960), (4, 32220720), (5, 25776576), (6, 21480480), (7, 18411840), (8, 16110360), (9, 14320320), (10, 12888288), (12, 10740240), (14, 9205920), (15, 8592192), (16, 8055180), (18, 7160160), (20, 6444144), (21, 6137280), (24, 5370120), (27, 4773440), (28, 4602960), (30, 4296096), (32, 4027590), (35, 3682368), (36, 3580080), (40, 3222072), (42, 3068640), (45, 2864064), (48, 2685060), (54, 2386720), (56, 2301480), (60, 2148048), (63, 2045760), (64, 2013795), (70, 1841184), (72, 1790040), (80, 1611036), (84, 1534320), (90, 1432032), (96, 1342530), (105, 1227456), (108, 1193360), (112, 1150740), (120, 1074024), (126, 1022880), (135, 954688), (140, 920592), (144, 895020), (160, 805518), (168, 767160), (180, 716016), (189, 681920), (192, 671265), (210, 613728), (216, 596680), (224, 575370), (240, 537012), (252, 511440), (270, 477344), (280, 460296), (288, 447510), (315, 409152), (320, 402759), (336, 383580), (360, 358008), (378, 340960), (420, 306864), (432, 298340), (448, 287685), (480, 268506), (504, 255720), (540, 238672), (560, 230148), (576, 223755), (630, 204576), (672, 191790), (720, 179004), (756, 170480), (840, 153432), (864, 149170), (945, 136384), (960, 134253), (1008, 127860), (1080, 119336), (1120, 115074), (1260, 102288), (1344, 95895), (1440, 89502), (1512, 85240), (1680, 76716), (1728, 74585), (1890, 68192), (2016, 63930), (2131, 60480), (2160, 59668), (2240, 57537), (2520, 51144), (2880, 44751), (3024, 42620), (3360, 38358), (3780, 34096), (4032, 31965), (4262, 30240), (4320, 29834), (5040, 25572), (6048, 21310), (6393, 20160), (6720, 19179), (7560, 17048), (8524, 15120), (8640, 14917), (10080, 12786), (10655, 12096)]