643285418

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{769}}^1$

素因数の和:1022

約数の個数: 32

約数和(自身を含む): 1009895040

約数和(自身を除く): 366609622

約数列:

[1, 2, 43, 71, 86, 137, 142, 274, 769, 1538, 3053, 5891, 6106, 9727, 11782, 19454, 33067, 54599, 66134, 105353, 109198, 210706, 418261, 836522, 2347757, 4530179, 4695514, 7480063, 9060358, 14960126, 321642709, 643285418]

約数ペア:

[(1, 643285418), (2, 321642709), (43, 14960126), (71, 9060358), (86, 7480063), (137, 4695514), (142, 4530179), (274, 2347757), (769, 836522), (1538, 418261), (3053, 210706), (5891, 109198), (6106, 105353), (9727, 66134), (11782, 54599), (19454, 33067)]