90981904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{437413}}^1$

素因数の和:437434

約数の個数: 20

約数和(自身を含む): 189837676

約数和(自身を除く): 98855772

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 437413, 874826, 1749652, 3499304, 5686369, 6998608, 11372738, 22745476, 45490952, 90981904]

約数ペア:

[(1, 90981904), (2, 45490952), (4, 22745476), (8, 11372738), (13, 6998608), (16, 5686369), (26, 3499304), (52, 1749652), (104, 874826), (208, 437413)]