398155664

素因数分解:

$2^4\times {\mathrm{1237}}^1\times {\mathrm{20117}}^1$

素因数の和:21362

約数の個数: 20

約数和(自身を含む): 772088604

約数和(自身を除く): 373932940

約数列:

[1, 2, 4, 8, 16, 1237, 2474, 4948, 9896, 19792, 20117, 40234, 80468, 160936, 321872, 24884729, 49769458, 99538916, 199077832, 398155664]

約数ペア:

[(1, 398155664), (2, 199077832), (4, 99538916), (8, 49769458), (16, 24884729), (1237, 321872), (2474, 160936), (4948, 80468), (9896, 40234), (19792, 20117)]