20515504

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8167}}^1$

素因数の和:8332

約数の個数: 20

約数和(自身を含む): 40006864

約数和(自身を除く): 19491360

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8167, 16334, 32668, 65336, 130672, 1282219, 2564438, 5128876, 10257752, 20515504]

約数ペア:

[(1, 20515504), (2, 10257752), (4, 5128876), (8, 2564438), (16, 1282219), (157, 130672), (314, 65336), (628, 32668), (1256, 16334), (2512, 8167)]