128820004

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{7583}}^1$

素因数の和:7755

約数の個数: 24

約数和(自身を含む): 234436608

約数和(自身を除く): 105616604

約数列:

[1, 2, 4, 31, 62, 124, 137, 274, 548, 4247, 7583, 8494, 15166, 16988, 30332, 235073, 470146, 940292, 1038871, 2077742, 4155484, 32205001, 64410002, 128820004]

約数ペア:

[(1, 128820004), (2, 64410002), (4, 32205001), (31, 4155484), (62, 2077742), (124, 1038871), (137, 940292), (274, 470146), (548, 235073), (4247, 30332), (7583, 16988), (8494, 15166)]