128790224

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{101891}}^1$

素因数の和:101978

約数の個数: 20

約数和(自身を含む): 252692160

約数和(自身を除く): 123901936

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 101891, 203782, 407564, 815128, 1630256, 8049389, 16098778, 32197556, 64395112, 128790224]

約数ペア:

[(1, 128790224), (2, 64395112), (4, 32197556), (8, 16098778), (16, 8049389), (79, 1630256), (158, 815128), (316, 407564), (632, 203782), (1264, 101891)]