20090168720

素因数分解:

$2^4\times 5^1\times {\mathrm{1907}}^1\times {\mathrm{131687}}^1$

素因数の和:133607

約数の個数: 40

約数和(自身を含む): 46734490944

約数和(自身を除く): 26644322224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1907, 3814, 7628, 9535, 15256, 19070, 30512, 38140, 76280, 131687, 152560, 263374, 526748, 658435, 1053496, 1316870, 2106992, 2633740, 5267480, 10534960, 251127109, 502254218, 1004508436, 1255635545, 2009016872, 2511271090, 4018033744, 5022542180, 10045084360, 20090168720]

約数ペア:

[(1, 20090168720), (2, 10045084360), (4, 5022542180), (5, 4018033744), (8, 2511271090), (10, 2009016872), (16, 1255635545), (20, 1004508436), (40, 502254218), (80, 251127109), (1907, 10534960), (3814, 5267480), (7628, 2633740), (9535, 2106992), (15256, 1316870), (19070, 1053496), (30512, 658435), (38140, 526748), (76280, 263374), (131687, 152560)]