28812800

素因数分解:

$2^9\times 5^2\times {\mathrm{2251}}^1$

素因数の和:2279

約数の個数: 60

約数和(自身を含む): 71417676

約数和(自身を除く): 42604876

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, 800, 1280, 1600, 2251, 2560, 3200, 4502, 6400, 9004, 11255, 12800, 18008, 22510, 36016, 45020, 56275, 72032, 90040, 112550, 144064, 180080, 225100, 288128, 360160, 450200, 576256, 720320, 900400, 1152512, 1440640, 1800800, 2881280, 3601600, 5762560, 7203200, 14406400, 28812800]

約数ペア:

[(1, 28812800), (2, 14406400), (4, 7203200), (5, 5762560), (8, 3601600), (10, 2881280), (16, 1800800), (20, 1440640), (25, 1152512), (32, 900400), (40, 720320), (50, 576256), (64, 450200), (80, 360160), (100, 288128), (128, 225100), (160, 180080), (200, 144064), (256, 112550), (320, 90040), (400, 72032), (512, 56275), (640, 45020), (800, 36016), (1280, 22510), (1600, 18008), (2251, 12800), (2560, 11255), (3200, 9004), (4502, 6400)]