287456

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:714

約数の個数: 24

約数和(自身を含む): 610344

約数和(自身を除く): 322888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 691, 1382, 2764, 5528, 8983, 11056, 17966, 22112, 35932, 71864, 143728, 287456]

約数ペア:

[(1, 287456), (2, 143728), (4, 71864), (8, 35932), (13, 22112), (16, 17966), (26, 11056), (32, 8983), (52, 5528), (104, 2764), (208, 1382), (416, 691)]