12764800

素因数分解:

$2^7\times 5^2\times {\mathrm{3989}}^1$

素因数の和:4013

約数の個数: 48

約数和(自身を含む): 31540950

約数和(自身を除く): 18776150

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 3989, 7978, 15956, 19945, 31912, 39890, 63824, 79780, 99725, 127648, 159560, 199450, 255296, 319120, 398900, 510592, 638240, 797800, 1276480, 1595600, 2552960, 3191200, 6382400, 12764800]

約数ペア:

[(1, 12764800), (2, 6382400), (4, 3191200), (5, 2552960), (8, 1595600), (10, 1276480), (16, 797800), (20, 638240), (25, 510592), (32, 398900), (40, 319120), (50, 255296), (64, 199450), (80, 159560), (100, 127648), (128, 99725), (160, 79780), (200, 63824), (320, 39890), (400, 31912), (640, 19945), (800, 15956), (1600, 7978), (3200, 3989)]