20195408

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18839}}^1$

素因数の和:18914

約数の個数: 20

約数和(自身を含む): 39714720

約数和(自身を除く): 19519312

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18839, 37678, 75356, 150712, 301424, 1262213, 2524426, 5048852, 10097704, 20195408]

約数ペア:

[(1, 20195408), (2, 10097704), (4, 5048852), (8, 2524426), (16, 1262213), (67, 301424), (134, 150712), (268, 75356), (536, 37678), (1072, 18839)]