387720490

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{435641}}^1$

素因数の和:435737

約数の個数: 16

約数和(自身を含む): 705740040

約数和(自身を除く): 318019550

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 435641, 871282, 2178205, 4356410, 38772049, 77544098, 193860245, 387720490]

約数ペア:

[(1, 387720490), (2, 193860245), (5, 77544098), (10, 38772049), (89, 4356410), (178, 2178205), (445, 871282), (890, 435641)]