25540112

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{122789}}^1$

素因数の和:122810

約数の個数: 20

約数和(自身を含む): 53290860

約数和(自身を除く): 27750748

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 122789, 245578, 491156, 982312, 1596257, 1964624, 3192514, 6385028, 12770056, 25540112]

約数ペア:

[(1, 25540112), (2, 12770056), (4, 6385028), (8, 3192514), (13, 1964624), (16, 1596257), (26, 982312), (52, 491156), (104, 245578), (208, 122789)]