19745104

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64951}}^1$

素因数の和:64978

約数の個数: 20

約数和(自身を含む): 40270240

約数和(自身を除く): 20525136

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64951, 129902, 259804, 519608, 1039216, 1234069, 2468138, 4936276, 9872552, 19745104]

約数ペア:

[(1, 19745104), (2, 9872552), (4, 4936276), (8, 2468138), (16, 1234069), (19, 1039216), (38, 519608), (76, 259804), (152, 129902), (304, 64951)]