20262400

素因数分解:

$2^9\times 5^2\times {\mathrm{1583}}^1$

素因数の和:1611

約数の個数: 60

約数和(自身を含む): 50233392

約数和(自身を除く): 29970992

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, 1583, 1600, 2560, 3166, 3200, 6332, 6400, 7915, 12664, 12800, 15830, 25328, 31660, 39575, 50656, 63320, 79150, 101312, 126640, 158300, 202624, 253280, 316600, 405248, 506560, 633200, 810496, 1013120, 1266400, 2026240, 2532800, 4052480, 5065600, 10131200, 20262400]

約数ペア:

[(1, 20262400), (2, 10131200), (4, 5065600), (5, 4052480), (8, 2532800), (10, 2026240), (16, 1266400), (20, 1013120), (25, 810496), (32, 633200), (40, 506560), (50, 405248), (64, 316600), (80, 253280), (100, 202624), (128, 158300), (160, 126640), (200, 101312), (256, 79150), (320, 63320), (400, 50656), (512, 39575), (640, 31660), (800, 25328), (1280, 15830), (1583, 12800), (1600, 12664), (2560, 7915), (3166, 6400), (3200, 6332)]