28298780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{503}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 62233920

約数和(自身を除く): 33935140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 388, 485, 503, 580, 970, 1006, 1940, 2012, 2515, 2813, 5030, 5626, 10060, 11252, 14065, 14587, 28130, 29174, 48791, 56260, 58348, 72935, 97582, 145870, 195164, 243955, 291740, 487910, 975820, 1414939, 2829878, 5659756, 7074695, 14149390, 28298780]

約数ペア:

[(1, 28298780), (2, 14149390), (4, 7074695), (5, 5659756), (10, 2829878), (20, 1414939), (29, 975820), (58, 487910), (97, 291740), (116, 243955), (145, 195164), (194, 145870), (290, 97582), (388, 72935), (485, 58348), (503, 56260), (580, 48791), (970, 29174), (1006, 28130), (1940, 14587), (2012, 14065), (2515, 11252), (2813, 10060), (5030, 5626)]