251015824

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1123

約数の個数: 40

約数和(自身を含む): 494452728

約数和(自身を除く): 243436904

約数列:

[1, 2, 4, 8, 16, 97, 194, 197, 388, 394, 776, 788, 821, 1552, 1576, 1642, 3152, 3284, 6568, 13136, 19109, 38218, 76436, 79637, 152872, 159274, 161737, 305744, 318548, 323474, 637096, 646948, 1274192, 1293896, 2587792, 15688489, 31376978, 62753956, 125507912, 251015824]

約数ペア:

[(1, 251015824), (2, 125507912), (4, 62753956), (8, 31376978), (16, 15688489), (97, 2587792), (194, 1293896), (197, 1274192), (388, 646948), (394, 637096), (776, 323474), (788, 318548), (821, 305744), (1552, 161737), (1576, 159274), (1642, 152872), (3152, 79637), (3284, 76436), (6568, 38218), (13136, 19109)]