408041680

素因数分解:

$2^4\times 5^1\times {\mathrm{5100521}}^1$

素因数の和:5100534

約数の個数: 20

約数和(自身を含む): 948697092

約数和(自身を除く): 540655412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5100521, 10201042, 20402084, 25502605, 40804168, 51005210, 81608336, 102010420, 204020840, 408041680]

約数ペア:

[(1, 408041680), (2, 204020840), (4, 102010420), (5, 81608336), (8, 51005210), (10, 40804168), (16, 25502605), (20, 20402084), (40, 10201042), (80, 5100521)]