38720780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{39511}}^1$

素因数の和:39534

約数の個数: 36

約数和(自身を含む): 94591728

約数和(自身を除く): 55870948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 39511, 79022, 158044, 197555, 276577, 395110, 553154, 790220, 1106308, 1382885, 1936039, 2765770, 3872078, 5531540, 7744156, 9680195, 19360390, 38720780]

約数ペア:

[(1, 38720780), (2, 19360390), (4, 9680195), (5, 7744156), (7, 5531540), (10, 3872078), (14, 2765770), (20, 1936039), (28, 1382885), (35, 1106308), (49, 790220), (70, 553154), (98, 395110), (140, 276577), (196, 197555), (245, 158044), (490, 79022), (980, 39511)]