6464000

素因数分解:

$2^9\times 5^3\times {\mathrm{101}}^1$

素因数の和:134

約数の個数: 80

約数和(自身を含む): 16277976

約数和(自身を除く): 9813976

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, 1280, 1600, 1616, 2000, 2020, 2525, 2560, 3200, 3232, 4000, 4040, 5050, 6400, 6464, 8000, 8080, 10100, 12625, 12800, 12928, 16000, 16160, 20200, 25250, 25856, 32000, 32320, 40400, 50500, 51712, 64000, 64640, 80800, 101000, 129280, 161600, 202000, 258560, 323200, 404000, 646400, 808000, 1292800, 1616000, 3232000, 6464000]

約数ペア:

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