12744500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 15560140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 355, 359, 500, 710, 718, 1420, 1436, 1775, 1795, 3550, 3590, 7100, 7180, 8875, 8975, 17750, 17950, 25489, 35500, 35900, 44875, 50978, 89750, 101956, 127445, 179500, 254890, 509780, 637225, 1274450, 2548900, 3186125, 6372250, 12744500]

約数ペア:

[(1, 12744500), (2, 6372250), (4, 3186125), (5, 2548900), (10, 1274450), (20, 637225), (25, 509780), (50, 254890), (71, 179500), (100, 127445), (125, 101956), (142, 89750), (250, 50978), (284, 44875), (355, 35900), (359, 35500), (500, 25489), (710, 17950), (718, 17750), (1420, 8975), (1436, 8875), (1775, 7180), (1795, 7100), (3550, 3590)]