6456400

素因数分解:

$2^4\times 5^2\times {\mathrm{16141}}^1$

素因数の和:16159

約数の個数: 30

約数和(自身を含む): 15512462

約数和(自身を除く): 9056062

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 16141, 32282, 64564, 80705, 129128, 161410, 258256, 322820, 403525, 645640, 807050, 1291280, 1614100, 3228200, 6456400]

約数ペア:

[(1, 6456400), (2, 3228200), (4, 1614100), (5, 1291280), (8, 807050), (10, 645640), (16, 403525), (20, 322820), (25, 258256), (40, 161410), (50, 129128), (80, 80705), (100, 64564), (200, 32282), (400, 16141)]