209830460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1498789}}^1$

素因数の和:1498805

約数の個数: 24

約数和(自身を含む): 503593440

約数和(自身を除く): 293762980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1498789, 2997578, 5995156, 7493945, 10491523, 14987890, 20983046, 29975780, 41966092, 52457615, 104915230, 209830460]

約数ペア:

[(1, 209830460), (2, 104915230), (4, 52457615), (5, 41966092), (7, 29975780), (10, 20983046), (14, 14987890), (20, 10491523), (28, 7493945), (35, 5995156), (70, 2997578), (140, 1498789)]