20185808

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{4909}}^1$

素因数の和:5174

約数の個数: 20

約数和(自身を含む): 39270180

約数和(自身を除く): 19084372

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 4909, 9818, 19636, 39272, 78544, 1261613, 2523226, 5046452, 10092904, 20185808]

約数ペア:

[(1, 20185808), (2, 10092904), (4, 5046452), (8, 2523226), (16, 1261613), (257, 78544), (514, 39272), (1028, 19636), (2056, 9818), (4112, 4909)]