16640480

素因数分解:

$2^5\times 5^1\times {\mathrm{104003}}^1$

素因数の和:104018

約数の個数: 24

約数和(自身を含む): 39313512

約数和(自身を除く): 22673032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 104003, 208006, 416012, 520015, 832024, 1040030, 1664048, 2080060, 3328096, 4160120, 8320240, 16640480]

約数ペア:

[(1, 16640480), (2, 8320240), (4, 4160120), (5, 3328096), (8, 2080060), (10, 1664048), (16, 1040030), (20, 832024), (32, 520015), (40, 416012), (80, 208006), (160, 104003)]