642581520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:574

約数の個数: 320

約数和(自身を含む): 2459842560

約数和(自身を除く): 1817261040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 41, 42, 48, 56, 57, 60, 70, 76, 80, 82, 84, 95, 105, 112, 114, 120, 123, 133, 140, 152, 164, 168, 190, 205, 210, 228, 240, 246, 266, 280, 285, 287, 304, 328, 336, 380, 399, 410, 420, 456, 491, 492, 532, 560, 570, 574, 615, 656, 665, 760, 779, 798, 820, 840, 861, 912, 982, 984, 1064, 1140, 1148, 1230, 1330, 1435, 1473, 1520, 1558, 1596, 1640, 1680, 1722, 1964, 1968, 1995, 2128, 2280, 2296, 2337, 2455, 2460, 2660, 2870, 2946, 3116, 3192, 3280, 3437, 3444, 3895, 3928, 3990, 4305, 4560, 4592, 4674, 4910, 4920, 5320, 5453, 5740, 5892, 6232, 6384, 6874, 6888, 7365, 7790, 7856, 7980, 8610, 9329, 9348, 9820, 9840, 10311, 10640, 10906, 11480, 11685, 11784, 12464, 13748, 13776, 14730, 15580, 15960, 16359, 17185, 17220, 18658, 18696, 19640, 20131, 20622, 21812, 22960, 23370, 23568, 27265, 27496, 27987, 29460, 31160, 31920, 32718, 34370, 34440, 37316, 37392, 39280, 40262, 41244, 43624, 46645, 46740, 51555, 54530, 54992, 55974, 58920, 60393, 62320, 65303, 65436, 68740, 68880, 74632, 80524, 81795, 82488, 87248, 93290, 93480, 100655, 103110, 109060, 111948, 117840, 120786, 130606, 130872, 137480, 139935, 140917, 149264, 161048, 163590, 164976, 186580, 186960, 195909, 201310, 206220, 218120, 223896, 241572, 261212, 261744, 274960, 279870, 281834, 301965, 322096, 326515, 327180, 373160, 382489, 391818, 402620, 412440, 422751, 436240, 447792, 483144, 522424, 559740, 563668, 603930, 653030, 654360, 704585, 746320, 764978, 783636, 805240, 824880, 845502, 966288, 979545, 1044848, 1119480, 1127336, 1147467, 1207860, 1306060, 1308720, 1409170, 1529956, 1567272, 1610480, 1691004, 1912445, 1959090, 2113755, 2238960, 2254672, 2294934, 2415720, 2612120, 2677423, 2818340, 3059912, 3134544, 3382008, 3824890, 3918180, 4227510, 4589868, 4831440, 5224240, 5354846, 5636680, 5737335, 6119824, 6764016, 7649780, 7836360, 8032269, 8455020, 9179736, 10709692, 11273360, 11474670, 13387115, 15299560, 15672720, 16064538, 16910040, 18359472, 21419384, 22949340, 26774230, 30599120, 32129076, 33820080, 40161345, 42838768, 45898680, 53548460, 64258152, 80322690, 91797360, 107096920, 128516304, 160645380, 214193840, 321290760, 642581520]

約数ペア:

[(1, 642581520), (2, 321290760), (3, 214193840), (4, 160645380), (5, 128516304), (6, 107096920), (7, 91797360), (8, 80322690), (10, 64258152), (12, 53548460), (14, 45898680), (15, 42838768), (16, 40161345), (19, 33820080), (20, 32129076), (21, 30599120), (24, 26774230), (28, 22949340), (30, 21419384), (35, 18359472), (38, 16910040), (40, 16064538), (41, 15672720), (42, 15299560), (48, 13387115), (56, 11474670), (57, 11273360), (60, 10709692), (70, 9179736), (76, 8455020), (80, 8032269), (82, 7836360), (84, 7649780), (95, 6764016), (105, 6119824), (112, 5737335), (114, 5636680), (120, 5354846), (123, 5224240), (133, 4831440), (140, 4589868), (152, 4227510), (164, 3918180), (168, 3824890), (190, 3382008), (205, 3134544), (210, 3059912), (228, 2818340), (240, 2677423), (246, 2612120), (266, 2415720), (280, 2294934), (285, 2254672), (287, 2238960), (304, 2113755), (328, 1959090), (336, 1912445), (380, 1691004), (399, 1610480), (410, 1567272), (420, 1529956), (456, 1409170), (491, 1308720), (492, 1306060), (532, 1207860), (560, 1147467), (570, 1127336), (574, 1119480), (615, 1044848), (656, 979545), (665, 966288), (760, 845502), (779, 824880), (798, 805240), (820, 783636), (840, 764978), (861, 746320), (912, 704585), (982, 654360), (984, 653030), (1064, 603930), (1140, 563668), (1148, 559740), (1230, 522424), (1330, 483144), (1435, 447792), (1473, 436240), (1520, 422751), (1558, 412440), (1596, 402620), (1640, 391818), (1680, 382489), (1722, 373160), (1964, 327180), (1968, 326515), (1995, 322096), (2128, 301965), (2280, 281834), (2296, 279870), (2337, 274960), (2455, 261744), (2460, 261212), (2660, 241572), (2870, 223896), (2946, 218120), (3116, 206220), (3192, 201310), (3280, 195909), (3437, 186960), (3444, 186580), (3895, 164976), (3928, 163590), (3990, 161048), (4305, 149264), (4560, 140917), (4592, 139935), (4674, 137480), (4910, 130872), (4920, 130606), (5320, 120786), (5453, 117840), (5740, 111948), (5892, 109060), (6232, 103110), (6384, 100655), (6874, 93480), (6888, 93290), (7365, 87248), (7790, 82488), (7856, 81795), (7980, 80524), (8610, 74632), (9329, 68880), (9348, 68740), (9820, 65436), (9840, 65303), (10311, 62320), (10640, 60393), (10906, 58920), (11480, 55974), (11685, 54992), (11784, 54530), (12464, 51555), (13748, 46740), (13776, 46645), (14730, 43624), (15580, 41244), (15960, 40262), (16359, 39280), (17185, 37392), (17220, 37316), (18658, 34440), (18696, 34370), (19640, 32718), (20131, 31920), (20622, 31160), (21812, 29460), (22960, 27987), (23370, 27496), (23568, 27265)]