20951472528

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{421}}^1\times {\mathrm{2351}}^1$

素因数の和:2803

約数の個数: 240

約数和(自身を含む): 70153009920

約数和(自身を除く): 49201537392

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 49, 54, 56, 63, 72, 84, 98, 108, 112, 126, 144, 147, 168, 189, 196, 216, 252, 294, 336, 378, 392, 421, 432, 441, 504, 588, 756, 784, 842, 882, 1008, 1176, 1263, 1323, 1512, 1684, 1764, 2351, 2352, 2526, 2646, 2947, 3024, 3368, 3528, 3789, 4702, 5052, 5292, 5894, 6736, 7053, 7056, 7578, 8841, 9404, 10104, 10584, 11367, 11788, 14106, 15156, 16457, 17682, 18808, 20208, 20629, 21159, 21168, 22734, 23576, 26523, 28212, 30312, 32914, 35364, 37616, 41258, 42318, 45468, 47152, 49371, 53046, 56424, 60624, 61887, 63477, 65828, 70728, 79569, 82516, 84636, 90936, 98742, 106092, 112848, 115199, 123774, 126954, 131656, 141456, 148113, 159138, 165032, 169272, 181872, 185661, 197484, 212184, 230398, 247548, 253908, 263312, 296226, 318276, 330064, 338544, 345597, 371322, 394968, 424368, 444339, 460796, 495096, 507816, 556983, 592452, 636552, 691194, 742644, 789936, 888678, 921592, 989771, 990192, 1015632, 1036791, 1113966, 1184904, 1273104, 1382388, 1485288, 1777356, 1843184, 1979542, 2073582, 2227932, 2369808, 2764776, 2969313, 2970576, 3110373, 3554712, 3959084, 4147164, 4455864, 5529552, 5938626, 6220746, 6928397, 7109424, 7918168, 8294328, 8907939, 8911728, 11877252, 12441492, 13856794, 15836336, 16588656, 17815878, 20785191, 23754504, 24882984, 26723817, 27713588, 35631756, 41570382, 47509008, 48498779, 49765968, 53447634, 55427176, 62355573, 71263512, 83140764, 96997558, 106895268, 110854352, 124711146, 142527024, 145496337, 166281528, 187066719, 193995116, 213790536, 249422292, 290992674, 332563056, 374133438, 387990232, 427581072, 436489011, 498844584, 581985348, 748266876, 775980464, 872978022, 997689168, 1163970696, 1309467033, 1496533752, 1745956044, 2327941392, 2618934066, 2993067504, 3491912088, 5237868132, 6983824176, 10475736264, 20951472528]

約数ペア:

[(1, 20951472528), (2, 10475736264), (3, 6983824176), (4, 5237868132), (6, 3491912088), (7, 2993067504), (8, 2618934066), (9, 2327941392), (12, 1745956044), (14, 1496533752), (16, 1309467033), (18, 1163970696), (21, 997689168), (24, 872978022), (27, 775980464), (28, 748266876), (36, 581985348), (42, 498844584), (48, 436489011), (49, 427581072), (54, 387990232), (56, 374133438), (63, 332563056), (72, 290992674), (84, 249422292), (98, 213790536), (108, 193995116), (112, 187066719), (126, 166281528), (144, 145496337), (147, 142527024), (168, 124711146), (189, 110854352), (196, 106895268), (216, 96997558), (252, 83140764), (294, 71263512), (336, 62355573), (378, 55427176), (392, 53447634), (421, 49765968), (432, 48498779), (441, 47509008), (504, 41570382), (588, 35631756), (756, 27713588), (784, 26723817), (842, 24882984), (882, 23754504), (1008, 20785191), (1176, 17815878), (1263, 16588656), (1323, 15836336), (1512, 13856794), (1684, 12441492), (1764, 11877252), (2351, 8911728), (2352, 8907939), (2526, 8294328), (2646, 7918168), (2947, 7109424), (3024, 6928397), (3368, 6220746), (3528, 5938626), (3789, 5529552), (4702, 4455864), (5052, 4147164), (5292, 3959084), (5894, 3554712), (6736, 3110373), (7053, 2970576), (7056, 2969313), (7578, 2764776), (8841, 2369808), (9404, 2227932), (10104, 2073582), (10584, 1979542), (11367, 1843184), (11788, 1777356), (14106, 1485288), (15156, 1382388), (16457, 1273104), (17682, 1184904), (18808, 1113966), (20208, 1036791), (20629, 1015632), (21159, 990192), (21168, 989771), (22734, 921592), (23576, 888678), (26523, 789936), (28212, 742644), (30312, 691194), (32914, 636552), (35364, 592452), (37616, 556983), (41258, 507816), (42318, 495096), (45468, 460796), (47152, 444339), (49371, 424368), (53046, 394968), (56424, 371322), (60624, 345597), (61887, 338544), (63477, 330064), (65828, 318276), (70728, 296226), (79569, 263312), (82516, 253908), (84636, 247548), (90936, 230398), (98742, 212184), (106092, 197484), (112848, 185661), (115199, 181872), (123774, 169272), (126954, 165032), (131656, 159138), (141456, 148113)]