669340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{683}}^1$

素因数の和:706

約数の個数: 36

約数和(自身を含む): 1637496

約数和(自身を除く): 968156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 683, 980, 1366, 2732, 3415, 4781, 6830, 9562, 13660, 19124, 23905, 33467, 47810, 66934, 95620, 133868, 167335, 334670, 669340]

約数ペア:

[(1, 669340), (2, 334670), (4, 167335), (5, 133868), (7, 95620), (10, 66934), (14, 47810), (20, 33467), (28, 23905), (35, 19124), (49, 13660), (70, 9562), (98, 6830), (140, 4781), (196, 3415), (245, 2732), (490, 1366), (683, 980)]