78080840

素因数分解:

$2^3\times 5^1\times {\mathrm{1952021}}^1$

素因数の和:1952032

約数の個数: 16

約数和(自身を含む): 175681980

約数和(自身を除く): 97601140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1952021, 3904042, 7808084, 9760105, 15616168, 19520210, 39040420, 78080840]

約数ペア:

[(1, 78080840), (2, 39040420), (4, 19520210), (5, 15616168), (8, 9760105), (10, 7808084), (20, 3904042), (40, 1952021)]