20439951616

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{265261}}^1$

素因数の和:265327

約数の個数: 72

約数和(自身を含む): 47713206464

約数和(自身を除く): 27273254848

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 301, 344, 448, 602, 688, 896, 1204, 1376, 1792, 2408, 2752, 4816, 5504, 9632, 11008, 19264, 38528, 77056, 265261, 530522, 1061044, 1856827, 2122088, 3713654, 4244176, 7427308, 8488352, 11406223, 14854616, 16976704, 22812446, 29709232, 33953408, 45624892, 59418464, 67906816, 79843561, 91249784, 118836928, 159687122, 182499568, 237673856, 319374244, 364999136, 475347712, 638748488, 729998272, 1277496976, 1459996544, 2554993952, 2919993088, 5109987904, 10219975808, 20439951616]

約数ペア:

[(1, 20439951616), (2, 10219975808), (4, 5109987904), (7, 2919993088), (8, 2554993952), (14, 1459996544), (16, 1277496976), (28, 729998272), (32, 638748488), (43, 475347712), (56, 364999136), (64, 319374244), (86, 237673856), (112, 182499568), (128, 159687122), (172, 118836928), (224, 91249784), (256, 79843561), (301, 67906816), (344, 59418464), (448, 45624892), (602, 33953408), (688, 29709232), (896, 22812446), (1204, 16976704), (1376, 14854616), (1792, 11406223), (2408, 8488352), (2752, 7427308), (4816, 4244176), (5504, 3713654), (9632, 2122088), (11008, 1856827), (19264, 1061044), (38528, 530522), (77056, 265261)]