280804316

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{415391}}^1$

素因数の和:415421

約数の個数: 18

約数和(自身を含む): 532117152

約数和(自身を除く): 251312836

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 415391, 830782, 1661564, 5400083, 10800166, 21600332, 70201079, 140402158, 280804316]

約数ペア:

[(1, 280804316), (2, 140402158), (4, 70201079), (13, 21600332), (26, 10800166), (52, 5400083), (169, 1661564), (338, 830782), (676, 415391)]