15821180

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1879}}^1$

素因数の和:2309

約数の個数: 24

約数和(自身を含む): 33321120

約数和(自身を除く): 17499940

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 1879, 2105, 3758, 4210, 7516, 8420, 9395, 18790, 37580, 791059, 1582118, 3164236, 3955295, 7910590, 15821180]

約数ペア:

[(1, 15821180), (2, 7910590), (4, 3955295), (5, 3164236), (10, 1582118), (20, 791059), (421, 37580), (842, 18790), (1684, 9395), (1879, 8420), (2105, 7516), (3758, 4210)]