87665960

素因数分解:

$2^3\times 5^1\times {\mathrm{823}}^1\times {\mathrm{2663}}^1$

素因数の和:3497

約数の個数: 32

約数和(自身を含む): 197562240

約数和(自身を除く): 109896280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 823, 1646, 2663, 3292, 4115, 5326, 6584, 8230, 10652, 13315, 16460, 21304, 26630, 32920, 53260, 106520, 2191649, 4383298, 8766596, 10958245, 17533192, 21916490, 43832980, 87665960]

約数ペア:

[(1, 87665960), (2, 43832980), (4, 21916490), (5, 17533192), (8, 10958245), (10, 8766596), (20, 4383298), (40, 2191649), (823, 106520), (1646, 53260), (2663, 32920), (3292, 26630), (4115, 21304), (5326, 16460), (6584, 13315), (8230, 10652)]