4257280

素因数分解:

$2^9\times 5^1\times {\mathrm{1663}}^1$

素因数の和:1686

約数の個数: 40

約数和(自身を含む): 10213632

約数和(自身を除く): 5956352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 1663, 2560, 3326, 6652, 8315, 13304, 16630, 26608, 33260, 53216, 66520, 106432, 133040, 212864, 266080, 425728, 532160, 851456, 1064320, 2128640, 4257280]

約数ペア:

[(1, 4257280), (2, 2128640), (4, 1064320), (5, 851456), (8, 532160), (10, 425728), (16, 266080), (20, 212864), (32, 133040), (40, 106432), (64, 66520), (80, 53216), (128, 33260), (160, 26608), (256, 16630), (320, 13304), (512, 8315), (640, 6652), (1280, 3326), (1663, 2560)]