8378140

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{823}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 17650080

約数和(自身を除く): 9271940

約数列:

[1, 2, 4, 5, 10, 20, 509, 823, 1018, 1646, 2036, 2545, 3292, 4115, 5090, 8230, 10180, 16460, 418907, 837814, 1675628, 2094535, 4189070, 8378140]

約数ペア:

[(1, 8378140), (2, 4189070), (4, 2094535), (5, 1675628), (10, 837814), (20, 418907), (509, 16460), (823, 10180), (1018, 8230), (1646, 5090), (2036, 4115), (2545, 3292)]