15751280

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{491}}^1$

素因数の和:905

約数の個数: 40

約数和(自身を含む): 36787824

約数和(自身を除く): 21036544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 491, 802, 982, 1604, 1964, 2005, 2455, 3208, 3928, 4010, 4910, 6416, 7856, 8020, 9820, 16040, 19640, 32080, 39280, 196891, 393782, 787564, 984455, 1575128, 1968910, 3150256, 3937820, 7875640, 15751280]

約数ペア:

[(1, 15751280), (2, 7875640), (4, 3937820), (5, 3150256), (8, 1968910), (10, 1575128), (16, 984455), (20, 787564), (40, 393782), (80, 196891), (401, 39280), (491, 32080), (802, 19640), (982, 16040), (1604, 9820), (1964, 8020), (2005, 7856), (2455, 6416), (3208, 4910), (3928, 4010)]