20404090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41641}}^1$

素因数の和:41662

約数の個数: 24

約数和(自身を含む): 42724692

約数和(自身を除く): 22320602

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41641, 83282, 208205, 291487, 416410, 582974, 1457435, 2040409, 2914870, 4080818, 10202045, 20404090]

約数ペア:

[(1, 20404090), (2, 10202045), (5, 4080818), (7, 2914870), (10, 2040409), (14, 1457435), (35, 582974), (49, 416410), (70, 291487), (98, 208205), (245, 83282), (490, 41641)]