123701420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1\times {\mathrm{439}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 265298880

約数和(自身を除く): 141597460

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 193, 292, 365, 386, 439, 730, 772, 878, 965, 1460, 1756, 1930, 2195, 3860, 4390, 8780, 14089, 28178, 32047, 56356, 64094, 70445, 84727, 128188, 140890, 160235, 169454, 281780, 320470, 338908, 423635, 640940, 847270, 1694540, 6185071, 12370142, 24740284, 30925355, 61850710, 123701420]

約数ペア:

[(1, 123701420), (2, 61850710), (4, 30925355), (5, 24740284), (10, 12370142), (20, 6185071), (73, 1694540), (146, 847270), (193, 640940), (292, 423635), (365, 338908), (386, 320470), (439, 281780), (730, 169454), (772, 160235), (878, 140890), (965, 128188), (1460, 84727), (1756, 70445), (1930, 64094), (2195, 56356), (3860, 32047), (4390, 28178), (8780, 14089)]