77280540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1288009}}^1$

素因数の和:1288021

約数の個数: 24

約数和(自身を含む): 216385680

約数和(自身を除く): 139105140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1288009, 2576018, 3864027, 5152036, 6440045, 7728054, 12880090, 15456108, 19320135, 25760180, 38640270, 77280540]

約数ペア:

[(1, 77280540), (2, 38640270), (3, 25760180), (4, 19320135), (5, 15456108), (6, 12880090), (10, 7728054), (12, 6440045), (15, 5152036), (20, 3864027), (30, 2576018), (60, 1288009)]