289731248

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{421121}}^1$

素因数の和:421172

約数の個数: 20

約数和(自身を含む): 574410408

約数和(自身を除く): 284679160

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 421121, 842242, 1684484, 3368968, 6737936, 18108203, 36216406, 72432812, 144865624, 289731248]

約数ペア:

[(1, 289731248), (2, 144865624), (4, 72432812), (8, 36216406), (16, 18108203), (43, 6737936), (86, 3368968), (172, 1684484), (344, 842242), (688, 421121)]