640128240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:752

約数の個数: 240

約数和(自身を含む): 2297486880

約数和(自身を除く): 1657358640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 73, 76, 80, 90, 95, 114, 120, 144, 146, 152, 171, 180, 190, 219, 228, 240, 285, 292, 304, 342, 360, 365, 380, 438, 456, 570, 584, 641, 657, 684, 720, 730, 760, 855, 876, 912, 1095, 1140, 1168, 1282, 1314, 1368, 1387, 1460, 1520, 1710, 1752, 1923, 2190, 2280, 2564, 2628, 2736, 2774, 2920, 3205, 3285, 3420, 3504, 3846, 4161, 4380, 4560, 5128, 5256, 5548, 5769, 5840, 6410, 6570, 6840, 6935, 7692, 8322, 8760, 9615, 10256, 10512, 11096, 11538, 12179, 12483, 12820, 13140, 13680, 13870, 15384, 16644, 17520, 19230, 20805, 22192, 23076, 24358, 24966, 25640, 26280, 27740, 28845, 30768, 33288, 36537, 38460, 41610, 46152, 46793, 48716, 49932, 51280, 52560, 55480, 57690, 60895, 62415, 66576, 73074, 76920, 83220, 92304, 93586, 97432, 99864, 109611, 110960, 115380, 121790, 124830, 140379, 146148, 153840, 166440, 182685, 187172, 194864, 199728, 219222, 230760, 233965, 243580, 249660, 280758, 292296, 332880, 365370, 374344, 421137, 438444, 461520, 467930, 487160, 499320, 548055, 561516, 584592, 701895, 730740, 748688, 842274, 876888, 889067, 935860, 974320, 998640, 1096110, 1123032, 1403790, 1461480, 1684548, 1753776, 1778134, 1871720, 2105685, 2192220, 2246064, 2667201, 2807580, 2922960, 3369096, 3556268, 3743440, 4211370, 4384440, 4445335, 5334402, 5615160, 6738192, 7112536, 8001603, 8422740, 8768880, 8890670, 10668804, 11230320, 13336005, 14225072, 16003206, 16845480, 17781340, 21337608, 26672010, 32006412, 33690960, 35562680, 40008015, 42675216, 53344020, 64012824, 71125360, 80016030, 106688040, 128025648, 160032060, 213376080, 320064120, 640128240]

約数ペア:

[(1, 640128240), (2, 320064120), (3, 213376080), (4, 160032060), (5, 128025648), (6, 106688040), (8, 80016030), (9, 71125360), (10, 64012824), (12, 53344020), (15, 42675216), (16, 40008015), (18, 35562680), (19, 33690960), (20, 32006412), (24, 26672010), (30, 21337608), (36, 17781340), (38, 16845480), (40, 16003206), (45, 14225072), (48, 13336005), (57, 11230320), (60, 10668804), (72, 8890670), (73, 8768880), (76, 8422740), (80, 8001603), (90, 7112536), (95, 6738192), (114, 5615160), (120, 5334402), (144, 4445335), (146, 4384440), (152, 4211370), (171, 3743440), (180, 3556268), (190, 3369096), (219, 2922960), (228, 2807580), (240, 2667201), (285, 2246064), (292, 2192220), (304, 2105685), (342, 1871720), (360, 1778134), (365, 1753776), (380, 1684548), (438, 1461480), (456, 1403790), (570, 1123032), (584, 1096110), (641, 998640), (657, 974320), (684, 935860), (720, 889067), (730, 876888), (760, 842274), (855, 748688), (876, 730740), (912, 701895), (1095, 584592), (1140, 561516), (1168, 548055), (1282, 499320), (1314, 487160), (1368, 467930), (1387, 461520), (1460, 438444), (1520, 421137), (1710, 374344), (1752, 365370), (1923, 332880), (2190, 292296), (2280, 280758), (2564, 249660), (2628, 243580), (2736, 233965), (2774, 230760), (2920, 219222), (3205, 199728), (3285, 194864), (3420, 187172), (3504, 182685), (3846, 166440), (4161, 153840), (4380, 146148), (4560, 140379), (5128, 124830), (5256, 121790), (5548, 115380), (5769, 110960), (5840, 109611), (6410, 99864), (6570, 97432), (6840, 93586), (6935, 92304), (7692, 83220), (8322, 76920), (8760, 73074), (9615, 66576), (10256, 62415), (10512, 60895), (11096, 57690), (11538, 55480), (12179, 52560), (12483, 51280), (12820, 49932), (13140, 48716), (13680, 46793), (13870, 46152), (15384, 41610), (16644, 38460), (17520, 36537), (19230, 33288), (20805, 30768), (22192, 28845), (23076, 27740), (24358, 26280), (24966, 25640)]