12721600

素因数分解:

$2^6\times 5^2\times {\mathrm{7951}}^1$

素因数の和:7973

約数の個数: 42

約数和(自身を含む): 31307024

約数和(自身を除く): 18585424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 7951, 15902, 31804, 39755, 63608, 79510, 127216, 159020, 198775, 254432, 318040, 397550, 508864, 636080, 795100, 1272160, 1590200, 2544320, 3180400, 6360800, 12721600]

約数ペア:

[(1, 12721600), (2, 6360800), (4, 3180400), (5, 2544320), (8, 1590200), (10, 1272160), (16, 795100), (20, 636080), (25, 508864), (32, 397550), (40, 318040), (50, 254432), (64, 198775), (80, 159020), (100, 127216), (160, 79510), (200, 63608), (320, 39755), (400, 31804), (800, 15902), (1600, 7951)]