19811260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141509}}^1$

素因数の和:141525

約数の個数: 24

約数和(自身を含む): 47547360

約数和(自身を除く): 27736100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141509, 283018, 566036, 707545, 990563, 1415090, 1981126, 2830180, 3962252, 4952815, 9905630, 19811260]

約数ペア:

[(1, 19811260), (2, 9905630), (4, 4952815), (5, 3962252), (7, 2830180), (10, 1981126), (14, 1415090), (20, 990563), (28, 707545), (35, 566036), (70, 283018), (140, 141509)]