1280451248

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{1861121}}^1$

素因数の和:1861172

約数の個数: 20

約数和(自身を含む): 2538570408

約数和(自身を除く): 1258119160

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1861121, 3722242, 7444484, 14888968, 29777936, 80028203, 160056406, 320112812, 640225624, 1280451248]

約数ペア:

[(1, 1280451248), (2, 640225624), (4, 320112812), (8, 160056406), (16, 80028203), (43, 29777936), (86, 14888968), (172, 7444484), (344, 3722242), (688, 1861121)]