20945950

素因数分解:

$2^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{1669}}^1$

素因数の和:1932

約数の個数: 24

約数和(自身を含む): 39138120

約数和(自身を除く): 18192170

約数列:

[1, 2, 5, 10, 25, 50, 251, 502, 1255, 1669, 2510, 3338, 6275, 8345, 12550, 16690, 41725, 83450, 418919, 837838, 2094595, 4189190, 10472975, 20945950]

約数ペア:

[(1, 20945950), (2, 10472975), (5, 4189190), (10, 2094595), (25, 837838), (50, 418919), (251, 83450), (502, 41725), (1255, 16690), (1669, 12550), (2510, 8345), (3338, 6275)]