661457520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:528

約数の個数: 240

約数和(自身を含む): 2332886400

約数和(自身を除く): 1671428880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 79, 80, 87, 90, 116, 120, 144, 145, 158, 174, 180, 232, 237, 240, 261, 290, 316, 348, 360, 395, 401, 435, 464, 474, 522, 580, 632, 696, 711, 720, 790, 802, 870, 948, 1044, 1160, 1185, 1203, 1264, 1305, 1392, 1422, 1580, 1604, 1740, 1896, 2005, 2088, 2291, 2320, 2370, 2406, 2610, 2844, 3160, 3208, 3480, 3555, 3609, 3792, 4010, 4176, 4582, 4740, 4812, 5220, 5688, 6015, 6320, 6416, 6873, 6960, 7110, 7218, 8020, 9164, 9480, 9624, 10440, 11376, 11455, 11629, 12030, 13746, 14220, 14436, 16040, 18045, 18328, 18960, 19248, 20619, 20880, 22910, 23258, 24060, 27492, 28440, 28872, 31679, 32080, 34365, 34887, 36090, 36656, 41238, 45820, 46516, 48120, 54984, 56880, 57744, 58145, 63358, 68730, 69774, 72180, 82476, 91640, 93032, 95037, 96240, 103095, 104661, 109968, 116290, 126716, 137460, 139548, 144360, 158395, 164952, 174435, 183280, 186064, 190074, 206190, 209322, 232580, 253432, 274920, 279096, 285111, 288720, 316790, 329904, 348870, 380148, 412380, 418644, 465160, 475185, 506864, 523305, 549840, 558192, 570222, 633580, 697740, 760296, 824760, 837288, 918691, 930320, 950370, 1046610, 1140444, 1267160, 1395480, 1425555, 1520592, 1649520, 1674576, 1837382, 1900740, 2093220, 2280888, 2534320, 2756073, 2790960, 2851110, 3674764, 3801480, 4186440, 4561776, 4593455, 5512146, 5702220, 7349528, 7602960, 8268219, 8372880, 9186910, 11024292, 11404440, 13780365, 14699056, 16536438, 18373820, 22048584, 22808880, 27560730, 33072876, 36747640, 41341095, 44097168, 55121460, 66145752, 73495280, 82682190, 110242920, 132291504, 165364380, 220485840, 330728760, 661457520]

約数ペア:

[(1, 661457520), (2, 330728760), (3, 220485840), (4, 165364380), (5, 132291504), (6, 110242920), (8, 82682190), (9, 73495280), (10, 66145752), (12, 55121460), (15, 44097168), (16, 41341095), (18, 36747640), (20, 33072876), (24, 27560730), (29, 22808880), (30, 22048584), (36, 18373820), (40, 16536438), (45, 14699056), (48, 13780365), (58, 11404440), (60, 11024292), (72, 9186910), (79, 8372880), (80, 8268219), (87, 7602960), (90, 7349528), (116, 5702220), (120, 5512146), (144, 4593455), (145, 4561776), (158, 4186440), (174, 3801480), (180, 3674764), (232, 2851110), (237, 2790960), (240, 2756073), (261, 2534320), (290, 2280888), (316, 2093220), (348, 1900740), (360, 1837382), (395, 1674576), (401, 1649520), (435, 1520592), (464, 1425555), (474, 1395480), (522, 1267160), (580, 1140444), (632, 1046610), (696, 950370), (711, 930320), (720, 918691), (790, 837288), (802, 824760), (870, 760296), (948, 697740), (1044, 633580), (1160, 570222), (1185, 558192), (1203, 549840), (1264, 523305), (1305, 506864), (1392, 475185), (1422, 465160), (1580, 418644), (1604, 412380), (1740, 380148), (1896, 348870), (2005, 329904), (2088, 316790), (2291, 288720), (2320, 285111), (2370, 279096), (2406, 274920), (2610, 253432), (2844, 232580), (3160, 209322), (3208, 206190), (3480, 190074), (3555, 186064), (3609, 183280), (3792, 174435), (4010, 164952), (4176, 158395), (4582, 144360), (4740, 139548), (4812, 137460), (5220, 126716), (5688, 116290), (6015, 109968), (6320, 104661), (6416, 103095), (6873, 96240), (6960, 95037), (7110, 93032), (7218, 91640), (8020, 82476), (9164, 72180), (9480, 69774), (9624, 68730), (10440, 63358), (11376, 58145), (11455, 57744), (11629, 56880), (12030, 54984), (13746, 48120), (14220, 46516), (14436, 45820), (16040, 41238), (18045, 36656), (18328, 36090), (18960, 34887), (19248, 34365), (20619, 32080), (20880, 31679), (22910, 28872), (23258, 28440), (24060, 27492)]