20015030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40847}}^1$

素因数の和:40868

約数の個数: 24

約数和(自身を含む): 41910048

約数和(自身を除く): 21895018

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40847, 81694, 204235, 285929, 408470, 571858, 1429645, 2001503, 2859290, 4003006, 10007515, 20015030]

約数ペア:

[(1, 20015030), (2, 10007515), (5, 4003006), (7, 2859290), (10, 2001503), (14, 1429645), (35, 571858), (49, 408470), (70, 285929), (98, 204235), (245, 81694), (490, 40847)]