28030180

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3329}}^1$

素因数の和:3759

約数の個数: 24

約数和(自身を含む): 59020920

約数和(自身を除く): 30990740

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 3329, 4210, 6658, 8420, 13316, 16645, 33290, 66580, 1401509, 2803018, 5606036, 7007545, 14015090, 28030180]

約数ペア:

[(1, 28030180), (2, 14015090), (4, 7007545), (5, 5606036), (10, 2803018), (20, 1401509), (421, 66580), (842, 33290), (1684, 16645), (2105, 13316), (3329, 8420), (4210, 6658)]