1640894800

素因数分解:

$2^4\times 5^2\times {\mathrm{4102237}}^1$

素因数の和:4102255

約数の個数: 30

約数和(自身を含む): 3942250718

約数和(自身を除く): 2301355918

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4102237, 8204474, 16408948, 20511185, 32817896, 41022370, 65635792, 82044740, 102555925, 164089480, 205111850, 328178960, 410223700, 820447400, 1640894800]

約数ペア:

[(1, 1640894800), (2, 820447400), (4, 410223700), (5, 328178960), (8, 205111850), (10, 164089480), (16, 102555925), (20, 82044740), (25, 65635792), (40, 41022370), (50, 32817896), (80, 20511185), (100, 16408948), (200, 8204474), (400, 4102237)]