2128640

素因数分解:

$2^8\times 5^1\times {\mathrm{1663}}^1$

素因数の和:1684

約数の個数: 36

約数和(自身を含む): 5101824

約数和(自身を除く): 2973184

約数列:

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

約数ペア:

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