20898010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42649}}^1$

素因数の和:42670

約数の個数: 24

約数和(自身を含む): 43758900

約数和(自身を除く): 22860890

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42649, 85298, 213245, 298543, 426490, 597086, 1492715, 2089801, 2985430, 4179602, 10449005, 20898010]

約数ペア:

[(1, 20898010), (2, 10449005), (5, 4179602), (7, 2985430), (10, 2089801), (14, 1492715), (35, 597086), (49, 426490), (70, 298543), (98, 213245), (245, 85298), (490, 42649)]