18643030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38047}}^1$

素因数の和:38068

約数の個数: 24

約数和(自身を含む): 39037248

約数和(自身を除く): 20394218

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38047, 76094, 190235, 266329, 380470, 532658, 1331645, 1864303, 2663290, 3728606, 9321515, 18643030]

約数ペア:

[(1, 18643030), (2, 9321515), (5, 3728606), (7, 2663290), (10, 1864303), (14, 1331645), (35, 532658), (49, 380470), (70, 266329), (98, 190235), (245, 76094), (490, 38047)]