87213220

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{16091}}^1$

素因数の和:16371

約数の個数: 24

約数和(自身を含む): 183835008

約数和(自身を除く): 96621788

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 16091, 32182, 64364, 80455, 160910, 321820, 4360661, 8721322, 17442644, 21803305, 43606610, 87213220]

約数ペア:

[(1, 87213220), (2, 43606610), (4, 21803305), (5, 17442644), (10, 8721322), (20, 4360661), (271, 321820), (542, 160910), (1084, 80455), (1355, 64364), (2710, 32182), (5420, 16091)]