638564175

素因数分解:

$3^3\times 5^2\times {\mathrm{946021}}^1$

素因数の和:946040

約数の個数: 24

約数和(自身を含む): 1173067280

約数和(自身を除く): 534503105

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 946021, 2838063, 4730105, 8514189, 14190315, 23650525, 25542567, 42570945, 70951575, 127712835, 212854725, 638564175]

約数ペア:

[(1, 638564175), (3, 212854725), (5, 127712835), (9, 70951575), (15, 42570945), (25, 25542567), (27, 23650525), (45, 14190315), (75, 8514189), (135, 4730105), (225, 2838063), (675, 946021)]