980140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{7001}}^1$

素因数の和:7017

約数の個数: 24

約数和(自身を含む): 2352672

約数和(自身を除く): 1372532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 7001, 14002, 28004, 35005, 49007, 70010, 98014, 140020, 196028, 245035, 490070, 980140]

約数ペア:

[(1, 980140), (2, 490070), (4, 245035), (5, 196028), (7, 140020), (10, 98014), (14, 70010), (20, 49007), (28, 35005), (35, 28004), (70, 14002), (140, 7001)]