257861632

素因数分解:

$2^{11}\times 7^1\times {\mathrm{17987}}^1$

素因数の和:18016

約数の個数: 48

約数和(自身を含む): 589286880

約数和(自身を除く): 331425248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2048, 3584, 7168, 14336, 17987, 35974, 71948, 125909, 143896, 251818, 287792, 503636, 575584, 1007272, 1151168, 2014544, 2302336, 4029088, 4604672, 8058176, 9209344, 16116352, 18418688, 32232704, 36837376, 64465408, 128930816, 257861632]

約数ペア:

[(1, 257861632), (2, 128930816), (4, 64465408), (7, 36837376), (8, 32232704), (14, 18418688), (16, 16116352), (28, 9209344), (32, 8058176), (56, 4604672), (64, 4029088), (112, 2302336), (128, 2014544), (224, 1151168), (256, 1007272), (448, 575584), (512, 503636), (896, 287792), (1024, 251818), (1792, 143896), (2048, 125909), (3584, 71948), (7168, 35974), (14336, 17987)]