20399952

素因数分解:

$2^4\times 3^1\times {\mathrm{157}}^1\times {\mathrm{2707}}^1$

素因数の和:2875

約数の個数: 40

約数和(自身を含む): 53055136

約数和(自身を除く): 32655184

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 157, 314, 471, 628, 942, 1256, 1884, 2512, 2707, 3768, 5414, 7536, 8121, 10828, 16242, 21656, 32484, 43312, 64968, 129936, 424999, 849998, 1274997, 1699996, 2549994, 3399992, 5099988, 6799984, 10199976, 20399952]

約数ペア:

[(1, 20399952), (2, 10199976), (3, 6799984), (4, 5099988), (6, 3399992), (8, 2549994), (12, 1699996), (16, 1274997), (24, 849998), (48, 424999), (157, 129936), (314, 64968), (471, 43312), (628, 32484), (942, 21656), (1256, 16242), (1884, 10828), (2512, 8121), (2707, 7536), (3768, 5414)]