39138620

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2003}}^1$

素因数の和:2989

約数の個数: 24

約数和(自身を含む): 82316304

約数和(自身を除く): 43177684

約数列:

[1, 2, 4, 5, 10, 20, 977, 1954, 2003, 3908, 4006, 4885, 8012, 9770, 10015, 19540, 20030, 40060, 1956931, 3913862, 7827724, 9784655, 19569310, 39138620]

約数ペア:

[(1, 39138620), (2, 19569310), (4, 9784655), (5, 7827724), (10, 3913862), (20, 1956931), (977, 40060), (1954, 20030), (2003, 19540), (3908, 10015), (4006, 9770), (4885, 8012)]