17990780

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1093}}^1$

素因数の和:1925

約数の個数: 24

約数和(自身を含む): 37861152

約数和(自身を除く): 19870372

約数列:

[1, 2, 4, 5, 10, 20, 823, 1093, 1646, 2186, 3292, 4115, 4372, 5465, 8230, 10930, 16460, 21860, 899539, 1799078, 3598156, 4497695, 8995390, 17990780]

約数ペア:

[(1, 17990780), (2, 8995390), (4, 4497695), (5, 3598156), (10, 1799078), (20, 899539), (823, 21860), (1093, 16460), (1646, 10930), (2186, 8230), (3292, 5465), (4115, 4372)]