81256984

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{1097}}^1$

素因数の和:1347

約数の個数: 32

約数和(自身を含む): 156530880

約数和(自身を除く): 75273896

約数列:

[1, 2, 4, 8, 47, 94, 188, 197, 376, 394, 788, 1097, 1576, 2194, 4388, 8776, 9259, 18518, 37036, 51559, 74072, 103118, 206236, 216109, 412472, 432218, 864436, 1728872, 10157123, 20314246, 40628492, 81256984]

約数ペア:

[(1, 81256984), (2, 40628492), (4, 20314246), (8, 10157123), (47, 1728872), (94, 864436), (188, 432218), (197, 412472), (376, 216109), (394, 206236), (788, 103118), (1097, 74072), (1576, 51559), (2194, 37036), (4388, 18518), (8776, 9259)]