278512

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{103}}^1$

素因数の和:137

約数の個数: 30

約数和(自身を含む): 589992

約数和(自身を除く): 311480

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 103, 104, 169, 206, 208, 338, 412, 676, 824, 1339, 1352, 1648, 2678, 2704, 5356, 10712, 17407, 21424, 34814, 69628, 139256, 278512]

約数ペア:

[(1, 278512), (2, 139256), (4, 69628), (8, 34814), (13, 21424), (16, 17407), (26, 10712), (52, 5356), (103, 2704), (104, 2678), (169, 1648), (206, 1352), (208, 1339), (338, 824), (412, 676)]