20453900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{8893}}^1$

素因数の和:8930

約数の個数: 36

約数和(自身を含む): 46319952

約数和(自身を除く): 25866052

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 8893, 17786, 35572, 44465, 88930, 177860, 204539, 222325, 409078, 444650, 818156, 889300, 1022695, 2045390, 4090780, 5113475, 10226950, 20453900]

約数ペア:

[(1, 20453900), (2, 10226950), (4, 5113475), (5, 4090780), (10, 2045390), (20, 1022695), (23, 889300), (25, 818156), (46, 444650), (50, 409078), (92, 222325), (100, 204539), (115, 177860), (230, 88930), (460, 44465), (575, 35572), (1150, 17786), (2300, 8893)]