78076940

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{2003}}^1$

素因数の和:3961

約数の個数: 24

約数和(自身を含む): 164127600

約数和(自身を除く): 86050660

約数列:

[1, 2, 4, 5, 10, 20, 1949, 2003, 3898, 4006, 7796, 8012, 9745, 10015, 19490, 20030, 38980, 40060, 3903847, 7807694, 15615388, 19519235, 39038470, 78076940]

約数ペア:

[(1, 78076940), (2, 39038470), (4, 19519235), (5, 15615388), (10, 7807694), (20, 3903847), (1949, 40060), (2003, 38980), (3898, 20030), (4006, 19490), (7796, 10015), (8012, 9745)]