25419472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{122209}}^1$

素因数の和:122230

約数の個数: 20

約数和(自身を含む): 53039140

約数和(自身を除く): 27619668

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 122209, 244418, 488836, 977672, 1588717, 1955344, 3177434, 6354868, 12709736, 25419472]

約数ペア:

[(1, 25419472), (2, 12709736), (4, 6354868), (8, 3177434), (13, 1955344), (16, 1588717), (26, 977672), (52, 488836), (104, 244418), (208, 122209)]