18657680

素因数分解:

$2^4\times 5^1\times {\mathrm{233221}}^1$

素因数の和:233234

約数の個数: 20

約数和(自身を含む): 43379292

約数和(自身を除く): 24721612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233221, 466442, 932884, 1166105, 1865768, 2332210, 3731536, 4664420, 9328840, 18657680]

約数ペア:

[(1, 18657680), (2, 9328840), (4, 4664420), (5, 3731536), (8, 2332210), (10, 1865768), (16, 1166105), (20, 932884), (40, 466442), (80, 233221)]