660848

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:512

約数の個数: 20

約数和(自身を含む): 1296048

約数和(自身を除く): 635200

約数列:

[1, 2, 4, 8, 16, 103, 206, 401, 412, 802, 824, 1604, 1648, 3208, 6416, 41303, 82606, 165212, 330424, 660848]

約数ペア:

[(1, 660848), (2, 330424), (4, 165212), (8, 82606), (16, 41303), (103, 6416), (206, 3208), (401, 1648), (412, 1604), (802, 824)]