20391481088

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{108079}}^1$

素因数の和:108173

約数の個数: 72

約数和(自身を含む): 45066766080

約数和(自身を除く): 24675284992

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 67, 88, 128, 134, 176, 256, 268, 352, 536, 704, 737, 1072, 1408, 1474, 2144, 2816, 2948, 4288, 5896, 8576, 11792, 17152, 23584, 47168, 94336, 108079, 188672, 216158, 432316, 864632, 1188869, 1729264, 2377738, 3458528, 4755476, 6917056, 7241293, 9510952, 13834112, 14482586, 19021904, 27668224, 28965172, 38043808, 57930344, 76087616, 79654223, 115860688, 152175232, 159308446, 231721376, 304350464, 318616892, 463442752, 637233784, 926885504, 1274467568, 1853771008, 2548935136, 5097870272, 10195740544, 20391481088]

約数ペア:

[(1, 20391481088), (2, 10195740544), (4, 5097870272), (8, 2548935136), (11, 1853771008), (16, 1274467568), (22, 926885504), (32, 637233784), (44, 463442752), (64, 318616892), (67, 304350464), (88, 231721376), (128, 159308446), (134, 152175232), (176, 115860688), (256, 79654223), (268, 76087616), (352, 57930344), (536, 38043808), (704, 28965172), (737, 27668224), (1072, 19021904), (1408, 14482586), (1474, 13834112), (2144, 9510952), (2816, 7241293), (2948, 6917056), (4288, 4755476), (5896, 3458528), (8576, 2377738), (11792, 1729264), (17152, 1188869), (23584, 864632), (47168, 432316), (94336, 216158), (108079, 188672)]