20215930

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41257}}^1$

素因数の和:41278

約数の個数: 24

約数和(自身を含む): 42330708

約数和(自身を除く): 22114778

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41257, 82514, 206285, 288799, 412570, 577598, 1443995, 2021593, 2887990, 4043186, 10107965, 20215930]

約数ペア:

[(1, 20215930), (2, 10107965), (5, 4043186), (7, 2887990), (10, 2021593), (14, 1443995), (35, 577598), (49, 412570), (70, 288799), (98, 206285), (245, 82514), (490, 41257)]