1285228740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21420479}}^1$

素因数の和:21420491

約数の個数: 24

約数和(自身を含む): 3598640640

約数和(自身を除く): 2313411900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21420479, 42840958, 64261437, 85681916, 107102395, 128522874, 214204790, 257045748, 321307185, 428409580, 642614370, 1285228740]

約数ペア:

[(1, 1285228740), (2, 642614370), (3, 428409580), (4, 321307185), (5, 257045748), (6, 214204790), (10, 128522874), (12, 107102395), (15, 85681916), (20, 64261437), (30, 42840958), (60, 21420479)]