130128640

素因数分解:

$2^8\times 5^1\times {\mathrm{101663}}^1$

素因数の和:101684

約数の個数: 36

約数和(自身を含む): 311701824

約数和(自身を除く): 181573184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 101663, 203326, 406652, 508315, 813304, 1016630, 1626608, 2033260, 3253216, 4066520, 6506432, 8133040, 13012864, 16266080, 26025728, 32532160, 65064320, 130128640]

約数ペア:

[(1, 130128640), (2, 65064320), (4, 32532160), (5, 26025728), (8, 16266080), (10, 13012864), (16, 8133040), (20, 6506432), (32, 4066520), (40, 3253216), (64, 2033260), (80, 1626608), (128, 1016630), (160, 813304), (256, 508315), (320, 406652), (640, 203326), (1280, 101663)]