19694570

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40193}}^1$

素因数の和:40214

約数の個数: 24

約数和(自身を含む): 41239044

約数和(自身を除く): 21544474

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40193, 80386, 200965, 281351, 401930, 562702, 1406755, 1969457, 2813510, 3938914, 9847285, 19694570]

約数ペア:

[(1, 19694570), (2, 9847285), (5, 3938914), (7, 2813510), (10, 1969457), (14, 1406755), (35, 562702), (49, 401930), (70, 281351), (98, 200965), (245, 80386), (490, 40193)]