12904400

素因数分解:

$2^4\times 5^2\times {\mathrm{32261}}^1$

素因数の和:32279

約数の個数: 30

約数和(自身を含む): 31003782

約数和(自身を除く): 18099382

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 32261, 64522, 129044, 161305, 258088, 322610, 516176, 645220, 806525, 1290440, 1613050, 2580880, 3226100, 6452200, 12904400]

約数ペア:

[(1, 12904400), (2, 6452200), (4, 3226100), (5, 2580880), (8, 1613050), (10, 1290440), (16, 806525), (20, 645220), (25, 516176), (40, 322610), (50, 258088), (80, 161305), (100, 129044), (200, 64522), (400, 32261)]