81842880

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:687

約数の個数: 224

約数和(自身を含む): 313090560

約数和(自身を除く): 231247680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 64, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 192, 210, 224, 228, 240, 266, 280, 285, 304, 320, 336, 380, 399, 420, 448, 456, 480, 532, 560, 570, 608, 641, 665, 672, 760, 798, 840, 912, 960, 1064, 1120, 1140, 1216, 1282, 1330, 1344, 1520, 1596, 1680, 1824, 1923, 1995, 2128, 2240, 2280, 2564, 2660, 3040, 3192, 3205, 3360, 3648, 3846, 3990, 4256, 4487, 4560, 5128, 5320, 6080, 6384, 6410, 6720, 7692, 7980, 8512, 8974, 9120, 9615, 10256, 10640, 12179, 12768, 12820, 13461, 15384, 15960, 17948, 18240, 19230, 20512, 21280, 22435, 24358, 25536, 25640, 26922, 30768, 31920, 35896, 36537, 38460, 41024, 42560, 44870, 48716, 51280, 53844, 60895, 61536, 63840, 67305, 71792, 73074, 76920, 85253, 89740, 97432, 102560, 107688, 121790, 123072, 127680, 134610, 143584, 146148, 153840, 170506, 179480, 182685, 194864, 205120, 215376, 243580, 255759, 269220, 287168, 292296, 307680, 341012, 358960, 365370, 389728, 426265, 430752, 487160, 511518, 538440, 584592, 615360, 682024, 717920, 730740, 779456, 852530, 861504, 974320, 1023036, 1076880, 1169184, 1278795, 1364048, 1435840, 1461480, 1705060, 1948640, 2046072, 2153760, 2338368, 2557590, 2728096, 2922960, 3410120, 3897280, 4092144, 4307520, 5115180, 5456192, 5845920, 6820240, 8184288, 10230360, 11691840, 13640480, 16368576, 20460720, 27280960, 40921440, 81842880]

約数ペア:

[(1, 81842880), (2, 40921440), (3, 27280960), (4, 20460720), (5, 16368576), (6, 13640480), (7, 11691840), (8, 10230360), (10, 8184288), (12, 6820240), (14, 5845920), (15, 5456192), (16, 5115180), (19, 4307520), (20, 4092144), (21, 3897280), (24, 3410120), (28, 2922960), (30, 2728096), (32, 2557590), (35, 2338368), (38, 2153760), (40, 2046072), (42, 1948640), (48, 1705060), (56, 1461480), (57, 1435840), (60, 1364048), (64, 1278795), (70, 1169184), (76, 1076880), (80, 1023036), (84, 974320), (95, 861504), (96, 852530), (105, 779456), (112, 730740), (114, 717920), (120, 682024), (133, 615360), (140, 584592), (152, 538440), (160, 511518), (168, 487160), (190, 430752), (192, 426265), (210, 389728), (224, 365370), (228, 358960), (240, 341012), (266, 307680), (280, 292296), (285, 287168), (304, 269220), (320, 255759), (336, 243580), (380, 215376), (399, 205120), (420, 194864), (448, 182685), (456, 179480), (480, 170506), (532, 153840), (560, 146148), (570, 143584), (608, 134610), (641, 127680), (665, 123072), (672, 121790), (760, 107688), (798, 102560), (840, 97432), (912, 89740), (960, 85253), (1064, 76920), (1120, 73074), (1140, 71792), (1216, 67305), (1282, 63840), (1330, 61536), (1344, 60895), (1520, 53844), (1596, 51280), (1680, 48716), (1824, 44870), (1923, 42560), (1995, 41024), (2128, 38460), (2240, 36537), (2280, 35896), (2564, 31920), (2660, 30768), (3040, 26922), (3192, 25640), (3205, 25536), (3360, 24358), (3648, 22435), (3846, 21280), (3990, 20512), (4256, 19230), (4487, 18240), (4560, 17948), (5128, 15960), (5320, 15384), (6080, 13461), (6384, 12820), (6410, 12768), (6720, 12179), (7692, 10640), (7980, 10256), (8512, 9615), (8974, 9120)]