81780968

素因数分解:

$2^3\times {\mathrm{557}}^1\times {\mathrm{18353}}^1$

素因数の和:18916

約数の個数: 16

約数和(自身を含む): 153622980

約数和(自身を除く): 71842012

約数列:

[1, 2, 4, 8, 557, 1114, 2228, 4456, 18353, 36706, 73412, 146824, 10222621, 20445242, 40890484, 81780968]

約数ペア:

[(1, 81780968), (2, 40890484), (4, 20445242), (8, 10222621), (557, 146824), (1114, 73412), (2228, 36706), (4456, 18353)]