81863804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{4549}}^1$

素因数の和:4973

約数の個数: 24

約数和(自身を含む): 156702000

約数和(自身を除く): 74838196

約数列:

[1, 2, 4, 11, 22, 44, 409, 818, 1636, 4499, 4549, 8998, 9098, 17996, 18196, 50039, 100078, 200156, 1860541, 3721082, 7442164, 20465951, 40931902, 81863804]

約数ペア:

[(1, 81863804), (2, 40931902), (4, 20465951), (11, 7442164), (22, 3721082), (44, 1860541), (409, 200156), (818, 100078), (1636, 50039), (4499, 18196), (4549, 17996), (8998, 9098)]