6499840

素因数分解:

$2^9\times 5^1\times {\mathrm{2539}}^1$

素因数の和:2562

約数の個数: 40

約数和(自身を含む): 15590520

約数和(自身を除く): 9090680

約数列:

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

約数ペア:

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