64477984

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1097

約数の個数: 48

約数和(自身を含む): 132789888

約数和(自身を除く): 68311904

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 86, 94, 172, 188, 344, 376, 688, 752, 997, 1376, 1504, 1994, 2021, 3988, 4042, 7976, 8084, 15952, 16168, 31904, 32336, 42871, 46859, 64672, 85742, 93718, 171484, 187436, 342968, 374872, 685936, 749744, 1371872, 1499488, 2014937, 4029874, 8059748, 16119496, 32238992, 64477984]

約数ペア:

[(1, 64477984), (2, 32238992), (4, 16119496), (8, 8059748), (16, 4029874), (32, 2014937), (43, 1499488), (47, 1371872), (86, 749744), (94, 685936), (172, 374872), (188, 342968), (344, 187436), (376, 171484), (688, 93718), (752, 85742), (997, 64672), (1376, 46859), (1504, 42871), (1994, 32336), (2021, 31904), (3988, 16168), (4042, 15952), (7976, 8084)]