19998230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2621}}^1$

素因数の和:2744

約数の個数: 32

約数和(自身を含む): 41532480

約数和(自身を除く): 21534250

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 545, 763, 1090, 1526, 2621, 3815, 5242, 7630, 13105, 18347, 26210, 36694, 91735, 183470, 285689, 571378, 1428445, 1999823, 2856890, 3999646, 9999115, 19998230]

約数ペア:

[(1, 19998230), (2, 9999115), (5, 3999646), (7, 2856890), (10, 1999823), (14, 1428445), (35, 571378), (70, 285689), (109, 183470), (218, 91735), (545, 36694), (763, 26210), (1090, 18347), (1526, 13105), (2621, 7630), (3815, 5242)]