21544000

素因数分解:

$2^6\times 5^3\times {\mathrm{2693}}^1$

素因数の和:2720

約数の個数: 56

約数和(自身を含む): 53373528

約数和(自身を除く): 31829528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 2693, 4000, 5386, 8000, 10772, 13465, 21544, 26930, 43088, 53860, 67325, 86176, 107720, 134650, 172352, 215440, 269300, 336625, 430880, 538600, 673250, 861760, 1077200, 1346500, 2154400, 2693000, 4308800, 5386000, 10772000, 21544000]

約数ペア:

[(1, 21544000), (2, 10772000), (4, 5386000), (5, 4308800), (8, 2693000), (10, 2154400), (16, 1346500), (20, 1077200), (25, 861760), (32, 673250), (40, 538600), (50, 430880), (64, 336625), (80, 269300), (100, 215440), (125, 172352), (160, 134650), (200, 107720), (250, 86176), (320, 67325), (400, 53860), (500, 43088), (800, 26930), (1000, 21544), (1600, 13465), (2000, 10772), (2693, 8000), (4000, 5386)]