20194864

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 40510800

約数和(自身を除く): 20315936

約数列:

[1, 2, 4, 8, 16, 43, 86, 149, 172, 197, 298, 344, 394, 596, 688, 788, 1192, 1576, 2384, 3152, 6407, 8471, 12814, 16942, 25628, 29353, 33884, 51256, 58706, 67768, 102512, 117412, 135536, 234824, 469648, 1262179, 2524358, 5048716, 10097432, 20194864]

約数ペア:

[(1, 20194864), (2, 10097432), (4, 5048716), (8, 2524358), (16, 1262179), (43, 469648), (86, 234824), (149, 135536), (172, 117412), (197, 102512), (298, 67768), (344, 58706), (394, 51256), (596, 33884), (688, 29353), (788, 25628), (1192, 16942), (1576, 12814), (2384, 8471), (3152, 6407)]