20566400

素因数分解:

$2^7\times 5^2\times {\mathrm{6427}}^1$

素因数の和:6451

約数の個数: 48

約数和(自身を含む): 50813340

約数和(自身を除く): 30246940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6427, 12854, 25708, 32135, 51416, 64270, 102832, 128540, 160675, 205664, 257080, 321350, 411328, 514160, 642700, 822656, 1028320, 1285400, 2056640, 2570800, 4113280, 5141600, 10283200, 20566400]

約数ペア:

[(1, 20566400), (2, 10283200), (4, 5141600), (5, 4113280), (8, 2570800), (10, 2056640), (16, 1285400), (20, 1028320), (25, 822656), (32, 642700), (40, 514160), (50, 411328), (64, 321350), (80, 257080), (100, 205664), (128, 160675), (160, 128540), (200, 102832), (320, 64270), (400, 51416), (640, 32135), (800, 25708), (1600, 12854), (3200, 6427)]