199975408

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{89917}}^1$

素因数の和:90064

約数の個数: 20

約数和(自身を含む): 390244120

約数和(自身を除く): 190268712

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 89917, 179834, 359668, 719336, 1438672, 12498463, 24996926, 49993852, 99987704, 199975408]

約数ペア:

[(1, 199975408), (2, 99987704), (4, 49993852), (8, 24996926), (16, 12498463), (139, 1438672), (278, 719336), (556, 359668), (1112, 179834), (2224, 89917)]