20140520

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{2161}}^1$

素因数の和:2405

約数の個数: 32

約数和(自身を含む): 45531720

約数和(自身を除く): 25391200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2161, 2330, 4322, 4660, 8644, 9320, 10805, 17288, 21610, 43220, 86440, 503513, 1007026, 2014052, 2517565, 4028104, 5035130, 10070260, 20140520]

約数ペア:

[(1, 20140520), (2, 10070260), (4, 5035130), (5, 4028104), (8, 2517565), (10, 2014052), (20, 1007026), (40, 503513), (233, 86440), (466, 43220), (932, 21610), (1165, 17288), (1864, 10805), (2161, 9320), (2330, 8644), (4322, 4660)]