20380480

素因数分解:

$2^6\times 5^1\times {\mathrm{63689}}^1$

素因数の和:63706

約数の個数: 28

約数和(自身を含む): 48531780

約数和(自身を除く): 28151300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63689, 127378, 254756, 318445, 509512, 636890, 1019024, 1273780, 2038048, 2547560, 4076096, 5095120, 10190240, 20380480]

約数ペア:

[(1, 20380480), (2, 10190240), (4, 5095120), (5, 4076096), (8, 2547560), (10, 2038048), (16, 1273780), (20, 1019024), (32, 636890), (40, 509512), (64, 318445), (80, 254756), (160, 127378), (320, 63689)]