20990950

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18253}}^1$

素因数の和:18288

約数の個数: 24

約数和(自身を含む): 40742928

約数和(自身を除く): 19751978

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18253, 36506, 91265, 182530, 419819, 456325, 839638, 912650, 2099095, 4198190, 10495475, 20990950]

約数ペア:

[(1, 20990950), (2, 10495475), (5, 4198190), (10, 2099095), (23, 912650), (25, 839638), (46, 456325), (50, 419819), (115, 182530), (230, 91265), (575, 36506), (1150, 18253)]