256828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 529200

約数和(自身を除く): 272372

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 449, 572, 898, 1796, 4939, 5837, 9878, 11674, 19756, 23348, 64207, 128414, 256828]

約数ペア:

[(1, 256828), (2, 128414), (4, 64207), (11, 23348), (13, 19756), (22, 11674), (26, 9878), (44, 5837), (52, 4939), (143, 1796), (286, 898), (449, 572)]