21536000

素因数分解:

$2^8\times 5^3\times {\mathrm{673}}^1$

素因数の和:704

約数の個数: 72

約数和(自身を含む): 53728584

約数和(自身を除く): 32192584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 673, 800, 1000, 1280, 1346, 1600, 2000, 2692, 3200, 3365, 4000, 5384, 6400, 6730, 8000, 10768, 13460, 16000, 16825, 21536, 26920, 32000, 33650, 43072, 53840, 67300, 84125, 86144, 107680, 134600, 168250, 172288, 215360, 269200, 336500, 430720, 538400, 673000, 861440, 1076800, 1346000, 2153600, 2692000, 4307200, 5384000, 10768000, 21536000]

約数ペア:

[(1, 21536000), (2, 10768000), (4, 5384000), (5, 4307200), (8, 2692000), (10, 2153600), (16, 1346000), (20, 1076800), (25, 861440), (32, 673000), (40, 538400), (50, 430720), (64, 336500), (80, 269200), (100, 215360), (125, 172288), (128, 168250), (160, 134600), (200, 107680), (250, 86144), (256, 84125), (320, 67300), (400, 53840), (500, 43072), (640, 33650), (673, 32000), (800, 26920), (1000, 21536), (1280, 16825), (1346, 16000), (1600, 13460), (2000, 10768), (2692, 8000), (3200, 6730), (3365, 6400), (4000, 5384)]