855405968

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{644131}}^1$

素因数の和:644222

約数の個数: 20

約数和(自身を含む): 1677319728

約数和(自身を除く): 821913760

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 644131, 1288262, 2576524, 5153048, 10306096, 53462873, 106925746, 213851492, 427702984, 855405968]

約数ペア:

[(1, 855405968), (2, 427702984), (4, 213851492), (8, 106925746), (16, 53462873), (83, 10306096), (166, 5153048), (332, 2576524), (664, 1288262), (1328, 644131)]