25748528

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{123791}}^1$

素因数の和:123812

約数の個数: 20

約数和(自身を含む): 53725728

約数和(自身を除く): 27977200

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 123791, 247582, 495164, 990328, 1609283, 1980656, 3218566, 6437132, 12874264, 25748528]

約数ペア:

[(1, 25748528), (2, 12874264), (4, 6437132), (8, 3218566), (13, 1980656), (16, 1609283), (26, 990328), (52, 495164), (104, 247582), (208, 123791)]