1912640

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:199

約数の個数: 56

約数和(自身を含む): 4693920

約数和(自身を除く): 2781280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 139, 160, 172, 215, 278, 320, 344, 430, 556, 688, 695, 860, 1112, 1376, 1390, 1720, 2224, 2752, 2780, 3440, 4448, 5560, 5977, 6880, 8896, 11120, 11954, 13760, 22240, 23908, 29885, 44480, 47816, 59770, 95632, 119540, 191264, 239080, 382528, 478160, 956320, 1912640]

約数ペア:

[(1, 1912640), (2, 956320), (4, 478160), (5, 382528), (8, 239080), (10, 191264), (16, 119540), (20, 95632), (32, 59770), (40, 47816), (43, 44480), (64, 29885), (80, 23908), (86, 22240), (139, 13760), (160, 11954), (172, 11120), (215, 8896), (278, 6880), (320, 5977), (344, 5560), (430, 4448), (556, 3440), (688, 2780), (695, 2752), (860, 2224), (1112, 1720), (1376, 1390)]