30520420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{218003}}^1$

素因数の和:218019

約数の個数: 24

約数和(自身を含む): 73249344

約数和(自身を除く): 42728924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 218003, 436006, 872012, 1090015, 1526021, 2180030, 3052042, 4360060, 6104084, 7630105, 15260210, 30520420]

約数ペア:

[(1, 30520420), (2, 15260210), (4, 7630105), (5, 6104084), (7, 4360060), (10, 3052042), (14, 2180030), (20, 1526021), (28, 1090015), (35, 872012), (70, 436006), (140, 218003)]