345880220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{352939}}^1$

素因数の和:352962

約数の個数: 36

約数和(自身を含む): 844938360

約数和(自身を除く): 499058140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 352939, 705878, 1411756, 1764695, 2470573, 3529390, 4941146, 7058780, 9882292, 12352865, 17294011, 24705730, 34588022, 49411460, 69176044, 86470055, 172940110, 345880220]

約数ペア:

[(1, 345880220), (2, 172940110), (4, 86470055), (5, 69176044), (7, 49411460), (10, 34588022), (14, 24705730), (20, 17294011), (28, 12352865), (35, 9882292), (49, 7058780), (70, 4941146), (98, 3529390), (140, 2470573), (196, 1764695), (245, 1411756), (490, 705878), (980, 352939)]