54928400

素因数分解:

$2^4\times 5^2\times {\mathrm{137321}}^1$

素因数の和:137339

約数の個数: 30

約数和(自身を含む): 131966442

約数和(自身を除く): 77038042

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 137321, 274642, 549284, 686605, 1098568, 1373210, 2197136, 2746420, 3433025, 5492840, 6866050, 10985680, 13732100, 27464200, 54928400]

約数ペア:

[(1, 54928400), (2, 27464200), (4, 13732100), (5, 10985680), (8, 6866050), (10, 5492840), (16, 3433025), (20, 2746420), (25, 2197136), (40, 1373210), (50, 1098568), (80, 686605), (100, 549284), (200, 274642), (400, 137321)]