17656940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4349}}^1$

素因数の和:4394

約数の個数: 48

約数和(自身を含む): 43848000

約数和(自身を除く): 26191060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4349, 8698, 17396, 21745, 30443, 43490, 60886, 86980, 121772, 126121, 152215, 252242, 304430, 504484, 608860, 630605, 882847, 1261210, 1765694, 2522420, 3531388, 4414235, 8828470, 17656940]

約数ペア:

[(1, 17656940), (2, 8828470), (4, 4414235), (5, 3531388), (7, 2522420), (10, 1765694), (14, 1261210), (20, 882847), (28, 630605), (29, 608860), (35, 504484), (58, 304430), (70, 252242), (116, 152215), (140, 126121), (145, 121772), (203, 86980), (290, 60886), (406, 43490), (580, 30443), (812, 21745), (1015, 17396), (2030, 8698), (4060, 4349)]