204515710

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{417379}}^1$

素因数の和:417400

約数の個数: 24

約数和(自身を含む): 428231880

約数和(自身を除く): 223716170

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 417379, 834758, 2086895, 2921653, 4173790, 5843306, 14608265, 20451571, 29216530, 40903142, 102257855, 204515710]

約数ペア:

[(1, 204515710), (2, 102257855), (5, 40903142), (7, 29216530), (10, 20451571), (14, 14608265), (35, 5843306), (49, 4173790), (70, 2921653), (98, 2086895), (245, 834758), (490, 417379)]