20147871248

素因数分解:

$2^4\times {\mathrm{4909}}^1\times {\mathrm{256517}}^1$

素因数の和:261434

約数の個数: 20

約数和(自身を含む): 39044604780

約数和(自身を除く): 18896733532

約数列:

[1, 2, 4, 8, 16, 4909, 9818, 19636, 39272, 78544, 256517, 513034, 1026068, 2052136, 4104272, 1259241953, 2518483906, 5036967812, 10073935624, 20147871248]

約数ペア:

[(1, 20147871248), (2, 10073935624), (4, 5036967812), (8, 2518483906), (16, 1259241953), (4909, 4104272), (9818, 2052136), (19636, 1026068), (39272, 513034), (78544, 256517)]