8491400

素因数分解:

$2^3\times 5^2\times {\mathrm{42457}}^1$

素因数の和:42473

約数の個数: 24

約数和(自身を含む): 19742970

約数和(自身を除く): 11251570

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 42457, 84914, 169828, 212285, 339656, 424570, 849140, 1061425, 1698280, 2122850, 4245700, 8491400]

約数ペア:

[(1, 8491400), (2, 4245700), (4, 2122850), (5, 1698280), (8, 1061425), (10, 849140), (20, 424570), (25, 339656), (40, 212285), (50, 169828), (100, 84914), (200, 42457)]