12856400

素因数分解:

$2^4\times 5^2\times {\mathrm{32141}}^1$

素因数の和:32159

約数の個数: 30

約数和(自身を含む): 30888462

約数和(自身を除く): 18032062

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 32141, 64282, 128564, 160705, 257128, 321410, 514256, 642820, 803525, 1285640, 1607050, 2571280, 3214100, 6428200, 12856400]

約数ペア:

[(1, 12856400), (2, 6428200), (4, 3214100), (5, 2571280), (8, 1607050), (10, 1285640), (16, 803525), (20, 642820), (25, 514256), (40, 321410), (50, 257128), (80, 160705), (100, 128564), (200, 64282), (400, 32141)]