2880220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2939}}^1$

素因数の和:2962

約数の個数: 36

約数和(自身を含む): 7038360

約数和(自身を除く): 4158140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2939, 5878, 11756, 14695, 20573, 29390, 41146, 58780, 82292, 102865, 144011, 205730, 288022, 411460, 576044, 720055, 1440110, 2880220]

約数ペア:

[(1, 2880220), (2, 1440110), (4, 720055), (5, 576044), (7, 411460), (10, 288022), (14, 205730), (20, 144011), (28, 102865), (35, 82292), (49, 58780), (70, 41146), (98, 29390), (140, 20573), (196, 14695), (245, 11756), (490, 5878), (980, 2939)]