636731840

素因数分解:

$2^6\times 5^1\times {\mathrm{1989787}}^1$

素因数の和:1989804

約数の個数: 28

約数和(自身を含む): 1516218456

約数和(自身を除く): 879486616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1989787, 3979574, 7959148, 9948935, 15918296, 19897870, 31836592, 39795740, 63673184, 79591480, 127346368, 159182960, 318365920, 636731840]

約数ペア:

[(1, 636731840), (2, 318365920), (4, 159182960), (5, 127346368), (8, 79591480), (10, 63673184), (16, 39795740), (20, 31836592), (32, 19897870), (40, 15918296), (64, 9948935), (80, 7959148), (160, 3979574), (320, 1989787)]