305374580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2181247}}^1$

素因数の和:2181263

約数の個数: 24

約数和(自身を含む): 732899328

約数和(自身を除く): 427524748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2181247, 4362494, 8724988, 10906235, 15268729, 21812470, 30537458, 43624940, 61074916, 76343645, 152687290, 305374580]

約数ペア:

[(1, 305374580), (2, 152687290), (4, 76343645), (5, 61074916), (7, 43624940), (10, 30537458), (14, 21812470), (20, 15268729), (28, 10906235), (35, 8724988), (70, 4362494), (140, 2181247)]