30728860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{90379}}^1$

素因数の和:90405

約数の個数: 24

約数和(自身を含む): 68327280

約数和(自身を除く): 37598420

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 90379, 180758, 361516, 451895, 903790, 1536443, 1807580, 3072886, 6145772, 7682215, 15364430, 30728860]

約数ペア:

[(1, 30728860), (2, 15364430), (4, 7682215), (5, 6145772), (10, 3072886), (17, 1807580), (20, 1536443), (34, 903790), (68, 451895), (85, 361516), (170, 180758), (340, 90379)]