20287856

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15277}}^1$

素因数の和:15368

約数の個数: 20

約数和(自身を含む): 39783912

約数和(自身を除く): 19496056

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15277, 30554, 61108, 122216, 244432, 1267991, 2535982, 5071964, 10143928, 20287856]

約数ペア:

[(1, 20287856), (2, 10143928), (4, 5071964), (8, 2535982), (16, 1267991), (83, 244432), (166, 122216), (332, 61108), (664, 30554), (1328, 15277)]