20494840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22277}}^1$

素因数の和:22311

約数の個数: 32

約数和(自身を含む): 48120480

約数和(自身を除く): 27625640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22277, 44554, 89108, 111385, 178216, 222770, 445540, 512371, 891080, 1024742, 2049484, 2561855, 4098968, 5123710, 10247420, 20494840]

約数ペア:

[(1, 20494840), (2, 10247420), (4, 5123710), (5, 4098968), (8, 2561855), (10, 2049484), (20, 1024742), (23, 891080), (40, 512371), (46, 445540), (92, 222770), (115, 178216), (184, 111385), (230, 89108), (460, 44554), (920, 22277)]