428481280

素因数分解:

$2^8\times 5^1\times {\mathrm{334751}}^1$

素因数の和:334772

約数の個数: 36

約数和(自身を含む): 1026349632

約数和(自身を除く): 597868352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 334751, 669502, 1339004, 1673755, 2678008, 3347510, 5356016, 6695020, 10712032, 13390040, 21424064, 26780080, 42848128, 53560160, 85696256, 107120320, 214240640, 428481280]

約数ペア:

[(1, 428481280), (2, 214240640), (4, 107120320), (5, 85696256), (8, 53560160), (10, 42848128), (16, 26780080), (20, 21424064), (32, 13390040), (40, 10712032), (64, 6695020), (80, 5356016), (128, 3347510), (160, 2678008), (256, 1673755), (320, 1339004), (640, 669502), (1280, 334751)]