137728400

素因数分解:

$2^4\times 5^2\times {\mathrm{344321}}^1$

素因数の和:344339

約数の個数: 30

約数和(自身を含む): 330893442

約数和(自身を除く): 193165042

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 344321, 688642, 1377284, 1721605, 2754568, 3443210, 5509136, 6886420, 8608025, 13772840, 17216050, 27545680, 34432100, 68864200, 137728400]

約数ペア:

[(1, 137728400), (2, 68864200), (4, 34432100), (5, 27545680), (8, 17216050), (10, 13772840), (16, 8608025), (20, 6886420), (25, 5509136), (40, 3443210), (50, 2754568), (80, 1721605), (100, 1377284), (200, 688642), (400, 344321)]