20618848

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 42154560

約数和(自身を除く): 21535712

約数列:

[1, 2, 4, 8, 16, 32, 59, 67, 118, 134, 163, 236, 268, 326, 472, 536, 652, 944, 1072, 1304, 1888, 2144, 2608, 3953, 5216, 7906, 9617, 10921, 15812, 19234, 21842, 31624, 38468, 43684, 63248, 76936, 87368, 126496, 153872, 174736, 307744, 349472, 644339, 1288678, 2577356, 5154712, 10309424, 20618848]

約数ペア:

[(1, 20618848), (2, 10309424), (4, 5154712), (8, 2577356), (16, 1288678), (32, 644339), (59, 349472), (67, 307744), (118, 174736), (134, 153872), (163, 126496), (236, 87368), (268, 76936), (326, 63248), (472, 43684), (536, 38468), (652, 31624), (944, 21842), (1072, 19234), (1304, 15812), (1888, 10921), (2144, 9617), (2608, 7906), (3953, 5216)]