319779584

素因数分解:

$2^8\times {\mathrm{1249139}}^1$

素因数の和:1249155

約数の個数: 18

約数和(自身を含む): 638310540

約数和(自身を除く): 318530956

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 1249139, 2498278, 4996556, 9993112, 19986224, 39972448, 79944896, 159889792, 319779584]

約数ペア:

[(1, 319779584), (2, 159889792), (4, 79944896), (8, 39972448), (16, 19986224), (32, 9993112), (64, 4996556), (128, 2498278), (256, 1249139)]