840800

素因数分解:

$2^5\times 5^2\times {\mathrm{1051}}^1$

素因数の和:1071

約数の個数: 36

約数和(自身を含む): 2054556

約数和(自身を除く): 1213756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 1051, 2102, 4204, 5255, 8408, 10510, 16816, 21020, 26275, 33632, 42040, 52550, 84080, 105100, 168160, 210200, 420400, 840800]

約数ペア:

[(1, 840800), (2, 420400), (4, 210200), (5, 168160), (8, 105100), (10, 84080), (16, 52550), (20, 42040), (25, 33632), (32, 26275), (40, 21020), (50, 16816), (80, 10510), (100, 8408), (160, 5255), (200, 4204), (400, 2102), (800, 1051)]