81311152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1753}}^1$

素因数の和:1997

約数の個数: 40

約数和(自身を含む): 170516864

約数和(自身を除く): 89205712

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 446, 892, 1753, 1784, 2899, 3506, 3568, 5798, 7012, 11596, 14024, 22789, 23192, 28048, 45578, 46384, 91156, 182312, 364624, 390919, 781838, 1563676, 3127352, 5081947, 6254704, 10163894, 20327788, 40655576, 81311152]

約数ペア:

[(1, 81311152), (2, 40655576), (4, 20327788), (8, 10163894), (13, 6254704), (16, 5081947), (26, 3127352), (52, 1563676), (104, 781838), (208, 390919), (223, 364624), (446, 182312), (892, 91156), (1753, 46384), (1784, 45578), (2899, 28048), (3506, 23192), (3568, 22789), (5798, 14024), (7012, 11596)]