218200430

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{445307}}^1$

素因数の和:445328

約数の個数: 24

約数和(自身を含む): 456886008

約数和(自身を除く): 238685578

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 445307, 890614, 2226535, 3117149, 4453070, 6234298, 15585745, 21820043, 31171490, 43640086, 109100215, 218200430]

約数ペア:

[(1, 218200430), (2, 109100215), (5, 43640086), (7, 31171490), (10, 21820043), (14, 15585745), (35, 6234298), (49, 4453070), (70, 3117149), (98, 2226535), (245, 890614), (490, 445307)]