19705968

素因数分解:

$2^4\times 3^2\times {\mathrm{281}}^1\times {\mathrm{487}}^1$

素因数の和:782

約数の個数: 60

約数和(自身を含む): 55459248

約数和(自身を除く): 35753280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 281, 487, 562, 843, 974, 1124, 1461, 1686, 1948, 2248, 2529, 2922, 3372, 3896, 4383, 4496, 5058, 5844, 6744, 7792, 8766, 10116, 11688, 13488, 17532, 20232, 23376, 35064, 40464, 70128, 136847, 273694, 410541, 547388, 821082, 1094776, 1231623, 1642164, 2189552, 2463246, 3284328, 4926492, 6568656, 9852984, 19705968]

約数ペア:

[(1, 19705968), (2, 9852984), (3, 6568656), (4, 4926492), (6, 3284328), (8, 2463246), (9, 2189552), (12, 1642164), (16, 1231623), (18, 1094776), (24, 821082), (36, 547388), (48, 410541), (72, 273694), (144, 136847), (281, 70128), (487, 40464), (562, 35064), (843, 23376), (974, 20232), (1124, 17532), (1461, 13488), (1686, 11688), (1948, 10116), (2248, 8766), (2529, 7792), (2922, 6744), (3372, 5844), (3896, 5058), (4383, 4496)]