17680180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18041}}^1$

素因数の和:18064

約数の個数: 36

約数和(自身を含む): 43192548

約数和(自身を除く): 25512368

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18041, 36082, 72164, 90205, 126287, 180410, 252574, 360820, 505148, 631435, 884009, 1262870, 1768018, 2525740, 3536036, 4420045, 8840090, 17680180]

約数ペア:

[(1, 17680180), (2, 8840090), (4, 4420045), (5, 3536036), (7, 2525740), (10, 1768018), (14, 1262870), (20, 884009), (28, 631435), (35, 505148), (49, 360820), (70, 252574), (98, 180410), (140, 126287), (196, 90205), (245, 72164), (490, 36082), (980, 18041)]