27972980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199807}}^1$

素因数の和:199823

約数の個数: 24

約数和(自身を含む): 67135488

約数和(自身を除く): 39162508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199807, 399614, 799228, 999035, 1398649, 1998070, 2797298, 3996140, 5594596, 6993245, 13986490, 27972980]

約数ペア:

[(1, 27972980), (2, 13986490), (4, 6993245), (5, 5594596), (7, 3996140), (10, 2797298), (14, 1998070), (20, 1398649), (28, 999035), (35, 799228), (70, 399614), (140, 199807)]