12928000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{101}}^1$

素因数の和:136

約数の個数: 88

約数和(自身を含む): 32571864

約数和(自身を除く): 19643864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 125, 128, 160, 200, 202, 250, 256, 320, 400, 404, 500, 505, 512, 640, 800, 808, 1000, 1010, 1024, 1280, 1600, 1616, 2000, 2020, 2525, 2560, 3200, 3232, 4000, 4040, 5050, 5120, 6400, 6464, 8000, 8080, 10100, 12625, 12800, 12928, 16000, 16160, 20200, 25250, 25600, 25856, 32000, 32320, 40400, 50500, 51712, 64000, 64640, 80800, 101000, 103424, 128000, 129280, 161600, 202000, 258560, 323200, 404000, 517120, 646400, 808000, 1292800, 1616000, 2585600, 3232000, 6464000, 12928000]

約数ペア:

[(1, 12928000), (2, 6464000), (4, 3232000), (5, 2585600), (8, 1616000), (10, 1292800), (16, 808000), (20, 646400), (25, 517120), (32, 404000), (40, 323200), (50, 258560), (64, 202000), (80, 161600), (100, 129280), (101, 128000), (125, 103424), (128, 101000), (160, 80800), (200, 64640), (202, 64000), (250, 51712), (256, 50500), (320, 40400), (400, 32320), (404, 32000), (500, 25856), (505, 25600), (512, 25250), (640, 20200), (800, 16160), (808, 16000), (1000, 12928), (1010, 12800), (1024, 12625), (1280, 10100), (1600, 8080), (1616, 8000), (2000, 6464), (2020, 6400), (2525, 5120), (2560, 5050), (3200, 4040), (3232, 4000)]