18201702980

素因数分解:

$2^2\times 5^1\times {\mathrm{910085149}}^1$

素因数の和:910085158

約数の個数: 12

約数和(自身を含む): 38223576300

約数和(自身を除く): 20021873320

約数列:

[1, 2, 4, 5, 10, 20, 910085149, 1820170298, 3640340596, 4550425745, 9100851490, 18201702980]

約数ペア:

[(1, 18201702980), (2, 9100851490), (4, 4550425745), (5, 3640340596), (10, 1820170298), (20, 910085149)]