263056

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:450

約数の個数: 20

約数和(自身を含む): 523404

約数和(自身を除く): 260348

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 401, 656, 802, 1604, 3208, 6416, 16441, 32882, 65764, 131528, 263056]

約数ペア:

[(1, 263056), (2, 131528), (4, 65764), (8, 32882), (16, 16441), (41, 6416), (82, 3208), (164, 1604), (328, 802), (401, 656)]