12999680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{2539}}^1$

素因数の和:2564

約数の個数: 44

約数和(自身を含む): 31196280

約数和(自身を除く): 18196600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2539, 2560, 5078, 5120, 10156, 12695, 20312, 25390, 40624, 50780, 81248, 101560, 162496, 203120, 324992, 406240, 649984, 812480, 1299968, 1624960, 2599936, 3249920, 6499840, 12999680]

約数ペア:

[(1, 12999680), (2, 6499840), (4, 3249920), (5, 2599936), (8, 1624960), (10, 1299968), (16, 812480), (20, 649984), (32, 406240), (40, 324992), (64, 203120), (80, 162496), (128, 101560), (160, 81248), (256, 50780), (320, 40624), (512, 25390), (640, 20312), (1024, 12695), (1280, 10156), (2539, 5120), (2560, 5078)]