804400

素因数分解:

$2^4\times 5^2\times {\mathrm{2011}}^1$

素因数の和:2029

約数の個数: 30

約数和(自身を含む): 1933532

約数和(自身を除く): 1129132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2011, 4022, 8044, 10055, 16088, 20110, 32176, 40220, 50275, 80440, 100550, 160880, 201100, 402200, 804400]

約数ペア:

[(1, 804400), (2, 402200), (4, 201100), (5, 160880), (8, 100550), (10, 80440), (16, 50275), (20, 40220), (25, 32176), (40, 20110), (50, 16088), (80, 10055), (100, 8044), (200, 4022), (400, 2011)]