12508400

素因数分解:

$2^4\times 5^2\times {\mathrm{31271}}^1$

素因数の和:31289

約数の個数: 30

約数和(自身を含む): 30052392

約数和(自身を除く): 17543992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31271, 62542, 125084, 156355, 250168, 312710, 500336, 625420, 781775, 1250840, 1563550, 2501680, 3127100, 6254200, 12508400]

約数ペア:

[(1, 12508400), (2, 6254200), (4, 3127100), (5, 2501680), (8, 1563550), (10, 1250840), (16, 781775), (20, 625420), (25, 500336), (40, 312710), (50, 250168), (80, 156355), (100, 125084), (200, 62542), (400, 31271)]