12806220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{30491}}^1$

素因数の和:30510

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 28175028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 30491, 60982, 91473, 121964, 152455, 182946, 213437, 304910, 365892, 426874, 457365, 609820, 640311, 853748, 914730, 1067185, 1280622, 1829460, 2134370, 2561244, 3201555, 4268740, 6403110, 12806220]

約数ペア:

[(1, 12806220), (2, 6403110), (3, 4268740), (4, 3201555), (5, 2561244), (6, 2134370), (7, 1829460), (10, 1280622), (12, 1067185), (14, 914730), (15, 853748), (20, 640311), (21, 609820), (28, 457365), (30, 426874), (35, 365892), (42, 304910), (60, 213437), (70, 182946), (84, 152455), (105, 121964), (140, 91473), (210, 60982), (420, 30491)]