20789000

素因数分解:

$2^3\times 5^3\times {\mathrm{20789}}^1$

素因数の和:20810

約数の個数: 32

約数和(自身を含む): 48648600

約数和(自身を除く): 27859600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20789, 41578, 83156, 103945, 166312, 207890, 415780, 519725, 831560, 1039450, 2078900, 2598625, 4157800, 5197250, 10394500, 20789000]

約数ペア:

[(1, 20789000), (2, 10394500), (4, 5197250), (5, 4157800), (8, 2598625), (10, 2078900), (20, 1039450), (25, 831560), (40, 519725), (50, 415780), (100, 207890), (125, 166312), (200, 103945), (250, 83156), (500, 41578), (1000, 20789)]