19900288

素因数分解:

$2^7\times {\mathrm{107}}^1\times {\mathrm{1453}}^1$

素因数の和:1574

約数の個数: 32

約数和(自身を含む): 40043160

約数和(自身を除く): 20142872

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 128, 214, 428, 856, 1453, 1712, 2906, 3424, 5812, 6848, 11624, 13696, 23248, 46496, 92992, 155471, 185984, 310942, 621884, 1243768, 2487536, 4975072, 9950144, 19900288]

約数ペア:

[(1, 19900288), (2, 9950144), (4, 4975072), (8, 2487536), (16, 1243768), (32, 621884), (64, 310942), (107, 185984), (128, 155471), (214, 92992), (428, 46496), (856, 23248), (1453, 13696), (1712, 11624), (2906, 6848), (3424, 5812)]