8424400

素因数分解:

$2^4\times 5^2\times {\mathrm{21061}}^1$

素因数の和:21079

約数の個数: 30

約数和(自身を含む): 20240582

約数和(自身を除く): 11816182

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 21061, 42122, 84244, 105305, 168488, 210610, 336976, 421220, 526525, 842440, 1053050, 1684880, 2106100, 4212200, 8424400]

約数ペア:

[(1, 8424400), (2, 4212200), (4, 2106100), (5, 1684880), (8, 1053050), (10, 842440), (16, 526525), (20, 421220), (25, 336976), (40, 210610), (50, 168488), (80, 105305), (100, 84244), (200, 42122), (400, 21061)]