25199408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{121151}}^1$

素因数の和:121172

約数の個数: 20

約数和(自身を含む): 52579968

約数和(自身を除く): 27380560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 121151, 242302, 484604, 969208, 1574963, 1938416, 3149926, 6299852, 12599704, 25199408]

約数ペア:

[(1, 25199408), (2, 12599704), (4, 6299852), (8, 3149926), (13, 1938416), (16, 1574963), (26, 969208), (52, 484604), (104, 242302), (208, 121151)]