1405820368

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{446009}}^1$

素因数の和:446214

約数の個数: 20

約数和(自身を含む): 2737609380

約数和(自身を除く): 1331789012

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 446009, 892018, 1784036, 3568072, 7136144, 87863773, 175727546, 351455092, 702910184, 1405820368]

約数ペア:

[(1, 1405820368), (2, 702910184), (4, 351455092), (8, 175727546), (16, 87863773), (197, 7136144), (394, 3568072), (788, 1784036), (1576, 892018), (3152, 446009)]