20706170

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^2$

素因数の和:722

約数の個数: 24

約数和(自身を含む): 39576924

約数和(自身を除く): 18870754

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 349, 698, 1745, 3490, 5933, 11866, 29665, 59330, 121801, 243602, 609005, 1218010, 2070617, 4141234, 10353085, 20706170]

約数ペア:

[(1, 20706170), (2, 10353085), (5, 4141234), (10, 2070617), (17, 1218010), (34, 609005), (85, 243602), (170, 121801), (349, 59330), (698, 29665), (1745, 11866), (3490, 5933)]