15206780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10709}}^1$

素因数の和:10789

約数の個数: 24

約数和(自身を含む): 32387040

約数和(自身を除く): 17180260

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 10709, 21418, 42836, 53545, 107090, 214180, 760339, 1520678, 3041356, 3801695, 7603390, 15206780]

約数ペア:

[(1, 15206780), (2, 7603390), (4, 3801695), (5, 3041356), (10, 1520678), (20, 760339), (71, 214180), (142, 107090), (284, 53545), (355, 42836), (710, 21418), (1420, 10709)]