19619222020

素因数分解:

$2^2\times 5^1\times {\mathrm{980961101}}^1$

素因数の和:980961110

約数の個数: 12

約数和(自身を含む): 41200366284

約数和(自身を除く): 21581144264

約数列:

[1, 2, 4, 5, 10, 20, 980961101, 1961922202, 3923844404, 4904805505, 9809611010, 19619222020]

約数ペア:

[(1, 19619222020), (2, 9809611010), (4, 4904805505), (5, 3923844404), (10, 1961922202), (20, 980961101)]