81507964

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{491}}^1\times {\mathrm{883}}^1$

素因数の和:1425

約数の個数: 24

約数和(自身を含む): 146135808

約数和(自身を除く): 64627844

約数列:

[1, 2, 4, 47, 94, 188, 491, 883, 982, 1766, 1964, 3532, 23077, 41501, 46154, 83002, 92308, 166004, 433553, 867106, 1734212, 20376991, 40753982, 81507964]

約数ペア:

[(1, 81507964), (2, 40753982), (4, 20376991), (47, 1734212), (94, 867106), (188, 433553), (491, 166004), (883, 92308), (982, 83002), (1766, 46154), (1964, 41501), (3532, 23077)]