420548480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:149

約数の個数: 256

約数和(自身を含む): 1184440320

約数和(自身を除く): 763891840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 41, 44, 47, 55, 62, 64, 80, 82, 88, 94, 110, 124, 128, 155, 160, 164, 176, 188, 205, 220, 235, 248, 310, 320, 328, 341, 352, 376, 410, 440, 451, 470, 496, 517, 620, 640, 656, 682, 704, 752, 820, 880, 902, 940, 992, 1034, 1240, 1271, 1312, 1364, 1408, 1457, 1504, 1640, 1705, 1760, 1804, 1880, 1927, 1984, 2068, 2255, 2480, 2542, 2585, 2624, 2728, 2914, 3008, 3280, 3410, 3520, 3608, 3760, 3854, 3968, 4136, 4510, 4960, 5084, 5170, 5248, 5456, 5828, 6016, 6355, 6560, 6820, 7040, 7216, 7285, 7520, 7708, 8272, 9020, 9635, 9920, 10168, 10340, 10912, 11656, 12710, 13120, 13640, 13981, 14432, 14570, 15040, 15416, 16027, 16544, 18040, 19270, 19840, 20336, 20680, 21197, 21824, 23312, 25420, 26240, 27280, 27962, 28864, 29140, 30080, 30832, 32054, 33088, 36080, 38540, 40672, 41360, 42394, 43648, 46624, 50840, 54560, 55924, 57728, 58280, 59737, 61664, 64108, 66176, 69905, 72160, 77080, 80135, 81344, 82720, 84788, 93248, 101680, 105985, 109120, 111848, 116560, 119474, 123328, 128216, 139810, 144320, 154160, 160270, 162688, 165440, 169576, 186496, 203360, 211970, 218240, 223696, 233120, 238948, 246656, 256432, 279620, 288640, 298685, 308320, 320540, 330880, 339152, 406720, 423940, 447392, 466240, 477896, 512864, 559240, 597370, 616640, 641080, 657107, 678304, 813440, 847880, 894784, 932480, 955792, 1025728, 1118480, 1194740, 1233280, 1282160, 1314214, 1356608, 1695760, 1789568, 1911584, 2051456, 2236960, 2389480, 2564320, 2628428, 2713216, 3285535, 3391520, 3823168, 4473920, 4778960, 5128640, 5256856, 6571070, 6783040, 7646336, 8947840, 9557920, 10257280, 10513712, 13142140, 13566080, 19115840, 21027424, 26284280, 38231680, 42054848, 52568560, 84109696, 105137120, 210274240, 420548480]

約数ペア:

[(1, 420548480), (2, 210274240), (4, 105137120), (5, 84109696), (8, 52568560), (10, 42054848), (11, 38231680), (16, 26284280), (20, 21027424), (22, 19115840), (31, 13566080), (32, 13142140), (40, 10513712), (41, 10257280), (44, 9557920), (47, 8947840), (55, 7646336), (62, 6783040), (64, 6571070), (80, 5256856), (82, 5128640), (88, 4778960), (94, 4473920), (110, 3823168), (124, 3391520), (128, 3285535), (155, 2713216), (160, 2628428), (164, 2564320), (176, 2389480), (188, 2236960), (205, 2051456), (220, 1911584), (235, 1789568), (248, 1695760), (310, 1356608), (320, 1314214), (328, 1282160), (341, 1233280), (352, 1194740), (376, 1118480), (410, 1025728), (440, 955792), (451, 932480), (470, 894784), (496, 847880), (517, 813440), (620, 678304), (640, 657107), (656, 641080), (682, 616640), (704, 597370), (752, 559240), (820, 512864), (880, 477896), (902, 466240), (940, 447392), (992, 423940), (1034, 406720), (1240, 339152), (1271, 330880), (1312, 320540), (1364, 308320), (1408, 298685), (1457, 288640), (1504, 279620), (1640, 256432), (1705, 246656), (1760, 238948), (1804, 233120), (1880, 223696), (1927, 218240), (1984, 211970), (2068, 203360), (2255, 186496), (2480, 169576), (2542, 165440), (2585, 162688), (2624, 160270), (2728, 154160), (2914, 144320), (3008, 139810), (3280, 128216), (3410, 123328), (3520, 119474), (3608, 116560), (3760, 111848), (3854, 109120), (3968, 105985), (4136, 101680), (4510, 93248), (4960, 84788), (5084, 82720), (5170, 81344), (5248, 80135), (5456, 77080), (5828, 72160), (6016, 69905), (6355, 66176), (6560, 64108), (6820, 61664), (7040, 59737), (7216, 58280), (7285, 57728), (7520, 55924), (7708, 54560), (8272, 50840), (9020, 46624), (9635, 43648), (9920, 42394), (10168, 41360), (10340, 40672), (10912, 38540), (11656, 36080), (12710, 33088), (13120, 32054), (13640, 30832), (13981, 30080), (14432, 29140), (14570, 28864), (15040, 27962), (15416, 27280), (16027, 26240), (16544, 25420), (18040, 23312), (19270, 21824), (19840, 21197), (20336, 20680)]