250005328

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{8263}}^1$

素因数の和:8363

約数の個数: 40

約数和(自身を含む): 508269056

約数和(自身を除く): 258263728

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 3782, 7564, 8263, 15128, 16526, 30256, 33052, 66104, 132208, 256153, 504043, 512306, 1008086, 1024612, 2016172, 2049224, 4032344, 4098448, 8064688, 15625333, 31250666, 62501332, 125002664, 250005328]

約数ペア:

[(1, 250005328), (2, 125002664), (4, 62501332), (8, 31250666), (16, 15625333), (31, 8064688), (61, 4098448), (62, 4032344), (122, 2049224), (124, 2016172), (244, 1024612), (248, 1008086), (488, 512306), (496, 504043), (976, 256153), (1891, 132208), (3782, 66104), (7564, 33052), (8263, 30256), (15128, 16526)]