27928460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199489}}^1$

素因数の和:199505

約数の個数: 24

約数和(自身を含む): 67028640

約数和(自身を除く): 39100180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199489, 398978, 797956, 997445, 1396423, 1994890, 2792846, 3989780, 5585692, 6982115, 13964230, 27928460]

約数ペア:

[(1, 27928460), (2, 13964230), (4, 6982115), (5, 5585692), (7, 3989780), (10, 2792846), (14, 1994890), (20, 1396423), (28, 997445), (35, 797956), (70, 398978), (140, 199489)]