661145900

素因数分解:

$2^2\times 5^2\times {\mathrm{229}}^1\times {\mathrm{28871}}^1$

素因数の和:29114

約数の個数: 36

約数和(自身を含む): 1441001520

約数和(自身を除く): 779855620

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 229, 458, 916, 1145, 2290, 4580, 5725, 11450, 22900, 28871, 57742, 115484, 144355, 288710, 577420, 721775, 1443550, 2887100, 6611459, 13222918, 26445836, 33057295, 66114590, 132229180, 165286475, 330572950, 661145900]

約数ペア:

[(1, 661145900), (2, 330572950), (4, 165286475), (5, 132229180), (10, 66114590), (20, 33057295), (25, 26445836), (50, 13222918), (100, 6611459), (229, 2887100), (458, 1443550), (916, 721775), (1145, 577420), (2290, 288710), (4580, 144355), (5725, 115484), (11450, 57742), (22900, 28871)]