199518976

素因数分解:

$2^8\times {\mathrm{31}}^2\times {\mathrm{811}}^1$

素因数の和:889

約数の個数: 54

約数和(自身を含む): 412027476

約数和(自身を除く): 212508500

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 811, 961, 992, 1622, 1922, 1984, 3244, 3844, 3968, 6488, 7688, 7936, 12976, 15376, 25141, 25952, 30752, 50282, 51904, 61504, 100564, 103808, 123008, 201128, 207616, 246016, 402256, 779371, 804512, 1558742, 1609024, 3117484, 3218048, 6234968, 6436096, 12469936, 24939872, 49879744, 99759488, 199518976]

約数ペア:

[(1, 199518976), (2, 99759488), (4, 49879744), (8, 24939872), (16, 12469936), (31, 6436096), (32, 6234968), (62, 3218048), (64, 3117484), (124, 1609024), (128, 1558742), (248, 804512), (256, 779371), (496, 402256), (811, 246016), (961, 207616), (992, 201128), (1622, 123008), (1922, 103808), (1984, 100564), (3244, 61504), (3844, 51904), (3968, 50282), (6488, 30752), (7688, 25952), (7936, 25141), (12976, 15376)]