814400

素因数分解:

$2^6\times 5^2\times {\mathrm{509}}^1$

素因数の和:531

約数の個数: 42

約数和(自身を含む): 2007870

約数和(自身を除く): 1193470

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 509, 800, 1018, 1600, 2036, 2545, 4072, 5090, 8144, 10180, 12725, 16288, 20360, 25450, 32576, 40720, 50900, 81440, 101800, 162880, 203600, 407200, 814400]

約数ペア:

[(1, 814400), (2, 407200), (4, 203600), (5, 162880), (8, 101800), (10, 81440), (16, 50900), (20, 40720), (25, 32576), (32, 25450), (40, 20360), (50, 16288), (64, 12725), (80, 10180), (100, 8144), (160, 5090), (200, 4072), (320, 2545), (400, 2036), (509, 1600), (800, 1018)]