64629440

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1453}}^1$

素因数の和:1609

約数の個数: 56

約数和(自身を含む): 155112720

約数和(自身を除く): 90483280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 1453, 2224, 2780, 2906, 4448, 5560, 5812, 7265, 8896, 11120, 11624, 14530, 22240, 23248, 29060, 44480, 46496, 58120, 92992, 116240, 201967, 232480, 403934, 464960, 807868, 1009835, 1615736, 2019670, 3231472, 4039340, 6462944, 8078680, 12925888, 16157360, 32314720, 64629440]

約数ペア:

[(1, 64629440), (2, 32314720), (4, 16157360), (5, 12925888), (8, 8078680), (10, 6462944), (16, 4039340), (20, 3231472), (32, 2019670), (40, 1615736), (64, 1009835), (80, 807868), (139, 464960), (160, 403934), (278, 232480), (320, 201967), (556, 116240), (695, 92992), (1112, 58120), (1390, 46496), (1453, 44480), (2224, 29060), (2780, 23248), (2906, 22240), (4448, 14530), (5560, 11624), (5812, 11120), (7265, 8896)]