217796075

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 320027136

約数和(自身を除く): 102231061

約数列:

[1, 5, 7, 25, 35, 43, 103, 175, 215, 281, 301, 515, 721, 1075, 1405, 1505, 1967, 2575, 3605, 4429, 7025, 7525, 9835, 12083, 18025, 22145, 28943, 31003, 49175, 60415, 84581, 110725, 144715, 155015, 202601, 302075, 422905, 723575, 775075, 1013005, 1244549, 2114525, 5065025, 6222745, 8711843, 31113725, 43559215, 217796075]

約数ペア:

[(1, 217796075), (5, 43559215), (7, 31113725), (25, 8711843), (35, 6222745), (43, 5065025), (103, 2114525), (175, 1244549), (215, 1013005), (281, 775075), (301, 723575), (515, 422905), (721, 302075), (1075, 202601), (1405, 155015), (1505, 144715), (1967, 110725), (2575, 84581), (3605, 60415), (4429, 49175), (7025, 31003), (7525, 28943), (9835, 22145), (12083, 18025)]