81352845

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{953}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 161920512

約数和(自身を除く): 80567667

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 271, 315, 813, 953, 1355, 1897, 2439, 2859, 4065, 4765, 5691, 6671, 8577, 9485, 12195, 14295, 17073, 20013, 28455, 33355, 42885, 60039, 85365, 100065, 258263, 300195, 774789, 1291315, 1807841, 2324367, 3873945, 5423523, 9039205, 11621835, 16270569, 27117615, 81352845]

約数ペア:

[(1, 81352845), (3, 27117615), (5, 16270569), (7, 11621835), (9, 9039205), (15, 5423523), (21, 3873945), (35, 2324367), (45, 1807841), (63, 1291315), (105, 774789), (271, 300195), (315, 258263), (813, 100065), (953, 85365), (1355, 60039), (1897, 42885), (2439, 33355), (2859, 28455), (4065, 20013), (4765, 17073), (5691, 14295), (6671, 12195), (8577, 9485)]