128438206

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{19681}}^1$

素因数の和:19947

約数の個数: 16

約数和(自身を含む): 208314288

約数和(自身を除く): 79876082

約数列:

[1, 2, 13, 26, 251, 502, 3263, 6526, 19681, 39362, 255853, 511706, 4939931, 9879862, 64219103, 128438206]

約数ペア:

[(1, 128438206), (2, 64219103), (13, 9879862), (26, 4939931), (251, 511706), (502, 255853), (3263, 39362), (6526, 19681)]