78996420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{438869}}^1$

素因数の和:438884

約数の個数: 36

約数和(自身を含む): 239623020

約数和(自身を除く): 160626600

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 438869, 877738, 1316607, 1755476, 2194345, 2633214, 3949821, 4388690, 5266428, 6583035, 7899642, 8777380, 13166070, 15799284, 19749105, 26332140, 39498210, 78996420]

約数ペア:

[(1, 78996420), (2, 39498210), (3, 26332140), (4, 19749105), (5, 15799284), (6, 13166070), (9, 8777380), (10, 7899642), (12, 6583035), (15, 5266428), (18, 4388690), (20, 3949821), (30, 2633214), (36, 2194345), (45, 1755476), (60, 1316607), (90, 877738), (180, 438869)]