16409600

素因数分解:

$2^{10}\times 5^2\times {\mathrm{641}}^1$

素因数の和:671

約数の個数: 66

約数和(自身を含む): 40739394

約数和(自身を除く): 24329794

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 641, 800, 1024, 1280, 1282, 1600, 2560, 2564, 3200, 3205, 5120, 5128, 6400, 6410, 10256, 12800, 12820, 16025, 20512, 25600, 25640, 32050, 41024, 51280, 64100, 82048, 102560, 128200, 164096, 205120, 256400, 328192, 410240, 512800, 656384, 820480, 1025600, 1640960, 2051200, 3281920, 4102400, 8204800, 16409600]

約数ペア:

[(1, 16409600), (2, 8204800), (4, 4102400), (5, 3281920), (8, 2051200), (10, 1640960), (16, 1025600), (20, 820480), (25, 656384), (32, 512800), (40, 410240), (50, 328192), (64, 256400), (80, 205120), (100, 164096), (128, 128200), (160, 102560), (200, 82048), (256, 64100), (320, 51280), (400, 41024), (512, 32050), (640, 25640), (641, 25600), (800, 20512), (1024, 16025), (1280, 12820), (1282, 12800), (1600, 10256), (2560, 6410), (2564, 6400), (3200, 5128), (3205, 5120)]