81901868

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{499}}^1\times {\mathrm{1109}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 147630000

約数和(自身を除く): 65728132

約数列:

[1, 2, 4, 37, 74, 148, 499, 998, 1109, 1996, 2218, 4436, 18463, 36926, 41033, 73852, 82066, 164132, 553391, 1106782, 2213564, 20475467, 40950934, 81901868]

約数ペア:

[(1, 81901868), (2, 40950934), (4, 20475467), (37, 2213564), (74, 1106782), (148, 553391), (499, 164132), (998, 82066), (1109, 73852), (1996, 41033), (2218, 36926), (4436, 18463)]