639771888

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{44281}}^1$

素因数の和:44342

約数の個数: 80

約数和(自身を含む): 1932820736

約数和(自身を除く): 1293048848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 43, 48, 56, 84, 86, 112, 129, 168, 172, 258, 301, 336, 344, 516, 602, 688, 903, 1032, 1204, 1806, 2064, 2408, 3612, 4816, 7224, 14448, 44281, 88562, 132843, 177124, 265686, 309967, 354248, 531372, 619934, 708496, 929901, 1062744, 1239868, 1859802, 1904083, 2125488, 2479736, 3719604, 3808166, 4959472, 5712249, 7439208, 7616332, 11424498, 13328581, 14878416, 15232664, 22848996, 26657162, 30465328, 39985743, 45697992, 53314324, 79971486, 91395984, 106628648, 159942972, 213257296, 319885944, 639771888]

約数ペア:

[(1, 639771888), (2, 319885944), (3, 213257296), (4, 159942972), (6, 106628648), (7, 91395984), (8, 79971486), (12, 53314324), (14, 45697992), (16, 39985743), (21, 30465328), (24, 26657162), (28, 22848996), (42, 15232664), (43, 14878416), (48, 13328581), (56, 11424498), (84, 7616332), (86, 7439208), (112, 5712249), (129, 4959472), (168, 3808166), (172, 3719604), (258, 2479736), (301, 2125488), (336, 1904083), (344, 1859802), (516, 1239868), (602, 1062744), (688, 929901), (903, 708496), (1032, 619934), (1204, 531372), (1806, 354248), (2064, 309967), (2408, 265686), (3612, 177124), (4816, 132843), (7224, 88562), (14448, 44281)]