12620860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{90149}}^1$

素因数の和:90165

約数の個数: 24

約数和(自身を含む): 30290400

約数和(自身を除く): 17669540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 90149, 180298, 360596, 450745, 631043, 901490, 1262086, 1802980, 2524172, 3155215, 6310430, 12620860]

約数ペア:

[(1, 12620860), (2, 6310430), (4, 3155215), (5, 2524172), (7, 1802980), (10, 1262086), (14, 901490), (20, 631043), (28, 450745), (35, 360596), (70, 180298), (140, 90149)]