19236980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 46421760

約数和(自身を除く): 27184780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 439, 626, 878, 1252, 1565, 1756, 2191, 2195, 3073, 3130, 4382, 4390, 6146, 6260, 8764, 8780, 10955, 12292, 15365, 21910, 30730, 43820, 61460, 137407, 274814, 549628, 687035, 961849, 1374070, 1923698, 2748140, 3847396, 4809245, 9618490, 19236980]

約数ペア:

[(1, 19236980), (2, 9618490), (4, 4809245), (5, 3847396), (7, 2748140), (10, 1923698), (14, 1374070), (20, 961849), (28, 687035), (35, 549628), (70, 274814), (140, 137407), (313, 61460), (439, 43820), (626, 30730), (878, 21910), (1252, 15365), (1565, 12292), (1756, 10955), (2191, 8780), (2195, 8764), (3073, 6260), (3130, 6146), (4382, 4390)]